[amsat-bb] Re: [Re: Prospero] Commanding Error
Hi Tony, The chuff chuff noises are from space...they are a sort of beacon carried on every Orbcomm satellite. They are 125msec long pulses of 57.6kb data and have a bandwidth of around 50kHz. They are quite distinctive when you only hear one at a time but sometimes one can hear two or more signals at the same time and that sort of changes the sound:) 73 Graham G3VZV -Original Message- From: Tony Abbey Sent: Wednesday, October 26, 2011 8:56 PM To: r...@mssl.ucl.ac.uk Cc: Phil Guttridge ; amsat-bb@amsat.org Subject: [amsat-bb] Re: [Re: Prospero] Commanding Error Hi Roger Nothing other than the chuff- chuff on the 1600 pass. And as you said, its also there with Prospero over the horizon. I 'm not using a beam presently - using a 360deg parasitic Lindenblad for circular polarisation, but it is susceptible to all the high power pager stuff nearby. Its just strange that there are elements shifting in frequency in the chuff chuff like a signal from a real satellite. Have just come back from a Rosat re-entry celebration! Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 26 Oct 2011, at 16:17, Roger Duthie wrote: Tony - We heard something intriguing after about 14:43:40 UT as the tracking said the satellite was on it's way off to the north pole. The 'chuff-chuff' description reminds me of a sound we seem to hear quite a lot. Quite often it coincides with a pass, though I think we hear the same (or very similar) during times when Prospero is over the horizon. We are going to try the next pass at ~16:00UT if you want to listen in again. Our new ploy is to wait for the last most opportune moment to command, as the power _may_ be at it highest (longest charging of batteries, potentially). So, we'll do short commanding at above 30o el, and listen. -Rr. Tony Abbey wrote: Hi Roger I could hear some chuff-chuff noises on the last pass and they show a related doppler shift (although I am not correcting sufficiently) as you can see in the attached plot. Maybe its some other noise but you never know. On 26 Oct 2011, at 13:39, Roger Duthie wrote: Commanding went well, from as far as we could make out. We're not sure if we're getting anything back, however. We'll be doing this pass today, hopefully: 26 Oct 7.3 15:31:43 10 S 15:38:26 60 E 15:46:11 10 NNE [Times in BST = UTC + 1] -Roger ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: [Re: Prospero] Commanding Error
Hi, I have a spectrogram and a recording of that chuff chuff on http://www.pe0sat.vgnet.nl/satellite/sat-history/prospero/ Is it the same you guys heard? 73 Jan PE0SAT On Thu, October 27, 2011 10:04, g.shirvi...@btinternet.com wrote: Hi Tony, The chuff chuff noises are from space...they are a sort of beacon carried on every Orbcomm satellite. They are 125msec long pulses of 57.6kb data and have a bandwidth of around 50kHz. They are quite distinctive when you only hear one at a time but sometimes one can hear two or more signals at the same time and that sort of changes the sound:) 73 Graham G3VZV -Original Message- From: Tony Abbey Sent: Wednesday, October 26, 2011 8:56 PM To: r...@mssl.ucl.ac.uk Cc: Phil Guttridge ; amsat-bb@amsat.org Subject: [amsat-bb] Re: [Re: Prospero] Commanding Error Hi Roger Nothing other than the chuff- chuff on the 1600 pass. And as you said, its also there with Prospero over the horizon. I 'm not using a beam presently - using a 360deg parasitic Lindenblad for circular polarisation, but it is susceptible to all the high power pager stuff nearby. Its just strange that there are elements shifting in frequency in the chuff chuff like a signal from a real satellite. Have just come back from a Rosat re-entry celebration! Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 26 Oct 2011, at 16:17, Roger Duthie wrote: Tony - We heard something intriguing after about 14:43:40 UT as the tracking said the satellite was on it's way off to the north pole. The 'chuff-chuff' description reminds me of a sound we seem to hear quite a lot. Quite often it coincides with a pass, though I think we hear the same (or very similar) during times when Prospero is over the horizon. We are going to try the next pass at ~16:00UT if you want to listen in again. Our new ploy is to wait for the last most opportune moment to command, as the power _may_ be at it highest (longest charging of batteries, potentially). So, we'll do short commanding at above 30o el, and listen. -Rr. Tony Abbey wrote: Hi Roger I could hear some chuff-chuff noises on the last pass and they show a related doppler shift (although I am not correcting sufficiently) as you can see in the attached plot. Maybe its some other noise but you never know. On 26 Oct 2011, at 13:39, Roger Duthie wrote: Commanding went well, from as far as we could make out. We're not sure if we're getting anything back, however. We'll be doing this pass today, hopefully: 26 Oct 7.3 15:31:43 10 S 15:38:26 60 E 15:46:11 10 NNE [Times in BST = UTC + 1] -Roger ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb -- With regards Jan H. van Gils Internet web-page http://www.VGNet.NL/ Internet e-mail address JanVG[at]VGNet.NL ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: [Re: Prospero] Commanding Error
Well, we're hearing something like that. Though we hear this a lot, we also wonder whether we''re seeing an envelope during the Prospero pass times. The passes for today (BST) [from Heavens-Above]: 27 Oct http://www.heavens-above.com/Gtrack.aspx?Session=kebgfdallldcgimjaonedkpfsatid=5580date=40843.617613831 7.2 15:42:26 10 S 15:49:21 77 E 15:57:21 10 NNE 27 Oct http://www.heavens-above.com/Gtrack.aspx?Session=kebgfdallldcgimjaonedkpfsatid=5580date=40843.6908054167 8.7 17:28:31 10 WSW 17:34:45 31 WNW 17:41:39 10 N Also, I've started a Twitter hashtag for anyone using this mode of communication: #Prospero40 Add this to any Twitter messages you might write about Prospero or related subjects. -Roger PE0SAT wrote: Hi, I have a spectrogram and a recording of that chuff chuff on http://www.pe0sat.vgnet.nl/satellite/sat-history/prospero/ Is it the same you guys heard? 73 Jan PE0SAT On Thu, October 27, 2011 10:04, g.shirvi...@btinternet.com wrote: Hi Tony, The chuff chuff noises are from space...they are a sort of beacon carried on every Orbcomm satellite. They are 125msec long pulses of 57.6kb data and have a bandwidth of around 50kHz. They are quite distinctive when you only hear one at a time but sometimes one can hear two or more signals at the same time and that sort of changes the sound:) 73 Graham G3VZV -Original Message- From: Tony Abbey Sent: Wednesday, October 26, 2011 8:56 PM To: r...@mssl.ucl.ac.uk Cc: Phil Guttridge ; amsat-bb@amsat.org Subject: [amsat-bb] Re: [Re: Prospero] Commanding Error Hi Roger Nothing other than the chuff- chuff on the 1600 pass. And as you said, its also there with Prospero over the horizon. I 'm not using a beam presently - using a 360deg parasitic Lindenblad for circular polarisation, but it is susceptible to all the high power pager stuff nearby. Its just strange that there are elements shifting in frequency in the chuff chuff like a signal from a real satellite. Have just come back from a Rosat re-entry celebration! Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 26 Oct 2011, at 16:17, Roger Duthie wrote: Tony - We heard something intriguing after about 14:43:40 UT as the tracking said the satellite was on it's way off to the north pole. The 'chuff-chuff' description reminds me of a sound we seem to hear quite a lot. Quite often it coincides with a pass, though I think we hear the same (or very similar) during times when Prospero is over the horizon. We are going to try the next pass at ~16:00UT if you want to listen in again. Our new ploy is to wait for the last most opportune moment to command, as the power _may_ be at it highest (longest charging of batteries, potentially). So, we'll do short commanding at above 30o el, and listen. -Rr. Tony Abbey wrote: Hi Roger I could hear some chuff-chuff noises on the last pass and they show a related doppler shift (although I am not correcting sufficiently) as you can see in the attached plot. Maybe its some other noise but you never know. On 26 Oct 2011, at 13:39, Roger Duthie wrote: Commanding went well, from as far as we could make out. We're not sure if we're getting anything back, however. We'll be doing this pass today, hopefully: 26 Oct 7.3 15:31:43 10 S 15:38:26 60 E 15:46:11 10 NNE [Times in BST = UTC + 1] -Roger ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb -- --- Roger J A Duthie PhD Candidate Plasma Group Department of Space Climate Physics UCL, London w: +44(0)1483 204 100 ext 2299 m: +44(0)7938 55 70 44 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: [Re: Prospero] Commanding Error
Hi Jan Yes - that's exactly the sound I have been receiving. I tried putting in the TLE for an Orbcomm sat when Graham told me about them, and the doppler correction seemed to match. Tony Abbey (G3OVH) - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 27 Oct 2011, at 12:52, PE0SAT wrote: Hi, I have a spectrogram and a recording of that chuff chuff on http://www.pe0sat.vgnet.nl/satellite/sat-history/prospero/ Is it the same you guys heard? 73 Jan PE0SAT On Thu, October 27, 2011 10:04, g.shirvi...@btinternet.com wrote: Hi Tony, The chuff chuff noises are from space...they are a sort of beacon carried on every Orbcomm satellite. They are 125msec long pulses of 57.6kb data and have a bandwidth of around 50kHz. They are quite distinctive when you only hear one at a time but sometimes one can hear two or more signals at the same time and that sort of changes the sound:) 73 Graham G3VZV -Original Message- From: Tony Abbey Sent: Wednesday, October 26, 2011 8:56 PM To: r...@mssl.ucl.ac.uk Cc: Phil Guttridge ; amsat-bb@amsat.org Subject: [amsat-bb] Re: [Re: Prospero] Commanding Error Hi Roger Nothing other than the chuff- chuff on the 1600 pass. And as you said, its also there with Prospero over the horizon. I 'm not using a beam presently - using a 360deg parasitic Lindenblad for circular polarisation, but it is susceptible to all the high power pager stuff nearby. Its just strange that there are elements shifting in frequency in the chuff chuff like a signal from a real satellite. Have just come back from a Rosat re-entry celebration! Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 26 Oct 2011, at 16:17, Roger Duthie wrote: Tony - We heard something intriguing after about 14:43:40 UT as the tracking said the satellite was on it's way off to the north pole. The 'chuff-chuff' description reminds me of a sound we seem to hear quite a lot. Quite often it coincides with a pass, though I think we hear the same (or very similar) during times when Prospero is over the horizon. We are going to try the next pass at ~16:00UT if you want to listen in again. Our new ploy is to wait for the last most opportune moment to command, as the power _may_ be at it highest (longest charging of batteries, potentially). So, we'll do short commanding at above 30o el, and listen. -Rr. Tony Abbey wrote: Hi Roger I could hear some chuff-chuff noises on the last pass and they show a related doppler shift (although I am not correcting sufficiently) as you can see in the attached plot. Maybe its some other noise but you never know. On 26 Oct 2011, at 13:39, Roger Duthie wrote: Commanding went well, from as far as we could make out. We're not sure if we're getting anything back, however. We'll be doing this pass today, hopefully: 26 Oct 7.3 15:31:43 10 S 15:38:26 60 E 15:46:11 10 NNE [Times in BST = UTC + 1] -Roger ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb -- With regards Jan H. van Gils Internet web-page http://www.VGNet.NL/ Internet e-mail address JanVG[at]VGNet.NL ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] HudsonValleySatcomGroupNetTonight10/27@8PMEasternOnEcholinkN2EYH-L
Hello all.It is time again for the HVSGN. I am sorry for the technical problems we had during the last net. Please join us and share your satellite experience with the Net. Hope to hear you there 73 Gary WA2AQH/Tom KC2DTQ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] 5 in em55
Congrats to Gerry N0JE award #36 5 in em55 WA4HFN ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Satellite QSO's and LoTW
Morning all, I was curious what the standard was for Logbook of the World (LoTW) reporting. Which band do you log your QSO with, Uplink or Downlink? I've been seeing mix results coming back via LoTW, where HRD Log defaults to using the downlink frequency although I've had some QSO's report back using the uplink. I do also log the satellite, mode and propagation type. Thanks, --jeff N3QO ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: [Re: Prospero] Commanding Error
Nothing heard from Prospero here in Leicester, that pass just finished (at 14:57Z) Just the Orbcomm swooshes. Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 27 Oct 2011, at 13:33, Roger Duthie wrote: Well, we're hearing something like that. Though we hear this a lot, we also wonder whether we''re seeing an envelope during the Prospero pass times. The passes for today (BST) [from Heavens-Above]: 27 Oct7.2 15:42:2610 S 15:49:2177 E 15:57:2110 NNE 27 Oct8.7 17:28:3110 WSW 17:34:4531 WNW 17:41:3910 N Also, I've started a Twitter hashtag for anyone using this mode of communication: #Prospero40 Add this to any Twitter messages you might write about Prospero or related subjects. -Roger PE0SAT wrote: Hi, I have a spectrogram and a recording of that chuff chuff on http://www.pe0sat.vgnet.nl/satellite/sat-history/prospero/ Is it the same you guys heard? 73 Jan PE0SAT On Thu, October 27, 2011 10:04, g.shirvi...@btinternet.com wrote: Hi Tony, The chuff chuff noises are from space...they are a sort of beacon carried on every Orbcomm satellite. They are 125msec long pulses of 57.6kb data and have a bandwidth of around 50kHz. They are quite distinctive when you only hear one at a time but sometimes one can hear two or more signals at the same time and that sort of changes the sound:) 73 Graham G3VZV -Original Message- From: Tony Abbey Sent: Wednesday, October 26, 2011 8:56 PM To: r...@mssl.ucl.ac.uk Cc: Phil Guttridge ; amsat-bb@amsat.org Subject: [amsat-bb] Re: [Re: Prospero] Commanding Error Hi Roger Nothing other than the chuff- chuff on the 1600 pass. And as you said, its also there with Prospero over the horizon. I 'm not using a beam presently - using a 360deg parasitic Lindenblad for circular polarisation, but it is susceptible to all the high power pager stuff nearby. Its just strange that there are elements shifting in frequency in the chuff chuff like a signal from a real satellite. Have just come back from a Rosat re-entry celebration! Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 26 Oct 2011, at 16:17, Roger Duthie wrote: Tony - We heard something intriguing after about 14:43:40 UT as the tracking said the satellite was on it's way off to the north pole. The 'chuff-chuff' description reminds me of a sound we seem to hear quite a lot. Quite often it coincides with a pass, though I think we hear the same (or very similar) during times when Prospero is over the horizon. We are going to try the next pass at ~16:00UT if you want to listen in again. Our new ploy is to wait for the last most opportune moment to command, as the power _may_ be at it highest (longest charging of batteries, potentially). So, we'll do short commanding at above 30o el, and listen. -Rr. Tony Abbey wrote: Hi Roger I could hear some chuff-chuff noises on the last pass and they show a related doppler shift (although I am not correcting sufficiently) as you can see in the attached plot. Maybe its some other noise but you never know. On 26 Oct 2011, at 13:39, Roger Duthie wrote: Commanding went well, from as far as we could make out. We're not sure if we're getting anything back, however. We'll be doing this pass today, hopefully: 26 Oct 7.3 15:31:43 10 S 15:38:26 60 E 15:46:11 10 NNE [Times in BST = UTC + 1] -Roger ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb -- --- Roger J A Duthie PhD Candidate Plasma Group Department of Space Climate Physics UCL, London w: +44(0)1483 204 100 ext 2299 m: +44(0)7938 55 70 44 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: [Re: Prospero] Commanding Error
We're hearing these 'chuff-chuff swooshes' too, though at times when our software is not showing Orbcomm over our horizon. Our TLEs may be slightly out-of-date, though I think it would be a marginal thing. Can it be definitely confirmed that these noises are Orbcomm? - Rr. Tony Abbey wrote: Nothing heard from Prospero here in Leicester, that pass just finished (at 14:57Z) Just the Orbcomm swooshes. Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 27 Oct 2011, at 13:33, Roger Duthie wrote: Well, we're hearing something like that. Though we hear this a lot, we also wonder whether we''re seeing an envelope during the Prospero pass times. The passes for today (BST) [from Heavens-Above]: 27 Oct http://www.heavens-above.com/Gtrack.aspx?Session=kebgfdallldcgimjaonedkpfsatid=5580date=40843.617613831 7.2 15:42:26 10 S 15:49:21 77 E 15:57:21 10 NNE 27 Oct http://www.heavens-above.com/Gtrack.aspx?Session=kebgfdallldcgimjaonedkpfsatid=5580date=40843.6908054167 8.7 17:28:31 10 WSW 17:34:45 31 WNW 17:41:39 10 N Also, I've started a Twitter hashtag for anyone using this mode of communication: #Prospero40 Add this to any Twitter messages you might write about Prospero or related subjects. -Roger PE0SAT wrote: Hi, I have a spectrogram and a recording of that chuff chuff on http://www.pe0sat.vgnet.nl/satellite/sat-history/prospero/ Is it the same you guys heard? 73 Jan PE0SAT On Thu, October 27, 2011 10:04, g.shirvi...@btinternet.com wrote: Hi Tony, The chuff chuff noises are from space...they are a sort of beacon carried on every Orbcomm satellite. They are 125msec long pulses of 57.6kb data and have a bandwidth of around 50kHz. They are quite distinctive when you only hear one at a time but sometimes one can hear two or more signals at the same time and that sort of changes the sound:) 73 Graham G3VZV -Original Message- From: Tony Abbey Sent: Wednesday, October 26, 2011 8:56 PM To: r...@mssl.ucl.ac.uk Cc: Phil Guttridge ; amsat-bb@amsat.org Subject: [amsat-bb] Re: [Re: Prospero] Commanding Error Hi Roger Nothing other than the chuff- chuff on the 1600 pass. And as you said, its also there with Prospero over the horizon. I 'm not using a beam presently - using a 360deg parasitic Lindenblad for circular polarisation, but it is susceptible to all the high power pager stuff nearby. Its just strange that there are elements shifting in frequency in the chuff chuff like a signal from a real satellite. Have just come back from a Rosat re-entry celebration! Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 26 Oct 2011, at 16:17, Roger Duthie wrote: Tony - We heard something intriguing after about 14:43:40 UT as the tracking said the satellite was on it's way off to the north pole. The 'chuff-chuff' description reminds me of a sound we seem to hear quite a lot. Quite often it coincides with a pass, though I think we hear the same (or very similar) during times when Prospero is over the horizon. We are going to try the next pass at ~16:00UT if you want to listen in again. Our new ploy is to wait for the last most opportune moment to command, as the power _may_ be at it highest (longest charging of batteries, potentially). So, we'll do short commanding at above 30o el, and listen. -Rr. Tony Abbey wrote: Hi Roger I could hear some chuff-chuff noises on the last pass and they show a related doppler shift (although I am not correcting sufficiently) as you can see in the attached plot. Maybe its some other noise but you never know. On 26 Oct 2011, at 13:39, Roger Duthie wrote: Commanding went well, from as far as we could make out. We're not sure if we're getting anything back, however. We'll be doing this pass today, hopefully: 26 Oct 7.3 15:31:43 10 S 15:38:26 60 E 15:46:11 10 NNE [Times in BST = UTC + 1] -Roger ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb -- --- Roger J A Duthie PhD Candidate Plasma Group Department of Space Climate Physics UCL, London w: +44(0)1483 204 100 ext 2299 m: +44(0)7938 55 70 44 -- --- Roger J A Duthie PhD Candidate Plasma Group Department of Space
[amsat-bb] Re: Satellite QSO's and LoTW
LoTW satellite convention is the uplink band. LoTW works well for satellite contacts and VUCC. I'm currently seeing about 20% confirmations. 73, Steve N9IP -- On Oct 27, 2011, at 10:39 AM, Jeff Welsh jhwe...@gmail.com wrote: Morning all, I was curious what the standard was for Logbook of the World (LoTW) reporting. Which band do you log your QSO with, Uplink or Downlink? I've been seeing mix results coming back via LoTW, where HRD Log defaults to using the downlink frequency although I've had some QSO's report back using the uplink. I do also log the satellite, mode and propagation type. Thanks, --jeff N3QO ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Satellite QSO's and LoTW
Hi Jeff! I was curious what the standard was for Logbook of the World (LoTW) reporting. Which band do you log your QSO with, Uplink or Downlink? The standard should be what is shown in N5JB's helpful PDF for satellite operators using LoTW. It is available from the ARRL web site: http://www.arrl.org/files/file/LoTW%20Instructions/N5JB.pdf The BAND field should be the uplink band. The FREQ field is not mandatory for LoTW, but it can also be uploaded to show the uplink frequency you used. I've been seeing mix results coming back via LoTW, where HRD Log defaults to using the downlink frequency although I've had some QSO's report back using the uplink. I do also log the satellite, mode and propagation type. The PROP_MODE and SAT_NAME fields must be present for a QSO to be a satellite QSO in LoTW. Make sure the satellite name matches with the list at the bottom of the LoTW FAQ page: https://p1k.arrl.org/lotw/faq Otherwise, LoTW may try to match that up as a non-satellite QSO. Again, N5JB's document does a great job of explaining things related to satellite operators using LoTW. When I made my first uploads to LoTW earlier this year, I only uploaded the seven fields as listed on the top of page two in N5JB's PDF. I had several thousand satellite QSOs I wanted to upload, along with the setup in TQSL for dozens of station locations and getting all the certificates for my call signs. Once the initial setup was done, and I had those QSOs in the system, it has been easy to keep up with the uploads for subsequent activity. I now include the 3 optional fields (uplink frequency, downlink band and frequency) in my LoTW uploads to have a more-complete QSO record - even though those additional fields have no effect on what becomes a QSL in LoTW. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Satellite QSO's and LoTW
Thanks for the clarification! Now I need to go correct my logbook. 73 --jeff N3QO On Thu, Oct 27, 2011 at 11:29 AM, Patrick STODDARD (WD9EWK/VA7EWK) amsat...@wd9ewk.net wrote: Hi Jeff! I was curious what the standard was for Logbook of the World (LoTW) reporting. Which band do you log your QSO with, Uplink or Downlink? The standard should be what is shown in N5JB's helpful PDF for satellite operators using LoTW. It is available from the ARRL web site: http://www.arrl.org/files/file/LoTW%20Instructions/N5JB.pdf The BAND field should be the uplink band. The FREQ field is not mandatory for LoTW, but it can also be uploaded to show the uplink frequency you used. I've been seeing mix results coming back via LoTW, where HRD Log defaults to using the downlink frequency although I've had some QSO's report back using the uplink. I do also log the satellite, mode and propagation type. The PROP_MODE and SAT_NAME fields must be present for a QSO to be a satellite QSO in LoTW. Make sure the satellite name matches with the list at the bottom of the LoTW FAQ page: https://p1k.arrl.org/lotw/faq Otherwise, LoTW may try to match that up as a non-satellite QSO. Again, N5JB's document does a great job of explaining things related to satellite operators using LoTW. When I made my first uploads to LoTW earlier this year, I only uploaded the seven fields as listed on the top of page two in N5JB's PDF. I had several thousand satellite QSOs I wanted to upload, along with the setup in TQSL for dozens of station locations and getting all the certificates for my call signs. Once the initial setup was done, and I had those QSOs in the system, it has been easy to keep up with the uploads for subsequent activity. I now include the 3 optional fields (uplink frequency, downlink band and frequency) in my LoTW uploads to have a more-complete QSO record - even though those additional fields have no effect on what becomes a QSL in LoTW. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: [Re: Prospero] Commanding Error
Hi Roger Once Graham told me the noise was Orbcomm this morning, I added the TLEs for their satellites (http://www.orbcomm.com/Collateral/Documents/English-US/o11292.tle) to my SDR Radio software satellite definitions. Here's a pass I recorded from one of them this morning, and you can see that the chuff-chuff on the left hand side has structure which is kept vertical by the doppler correction. The other crap and pager cross talk etc bends with the doppler correction. I think that proves the point. Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 27 Oct 2011, at 16:17, Roger Duthie wrote: We're hearing these 'chuff-chuff swooshes' too, though at times when our software is not showing Orbcomm over our horizon. Our TLEs may be slightly out-of-date, though I think it would be a marginal thing. Can it be definitely confirmed that these noises are Orbcomm? - Rr. Tony Abbey wrote: Nothing heard from Prospero here in Leicester, that pass just finished (at 14:57Z) Just the Orbcomm swooshes. Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 27 Oct 2011, at 13:33, Roger Duthie wrote: Well, we're hearing something like that. Though we hear this a lot, we also wonder whether we''re seeing an envelope during the Prospero pass times. The passes for today (BST) [from Heavens-Above]: 27 Oct 7.2 15:42:2610 S 15:49:2177 E 15:57:2110 NNE 27 Oct 8.7 17:28:3110 WSW 17:34:4531 WNW 17:41:3910 N Also, I've started a Twitter hashtag for anyone using this mode of communication: #Prospero40 Add this to any Twitter messages you might write about Prospero or related subjects. -Roger PE0SAT wrote: Hi, I have a spectrogram and a recording of that chuff chuff on http://www.pe0sat.vgnet.nl/satellite/sat-history/prospero/ Is it the same you guys heard? 73 Jan PE0SAT On Thu, October 27, 2011 10:04, g.shirvi...@btinternet.com wrote: Hi Tony, The chuff chuff noises are from space...they are a sort of beacon carried on every Orbcomm satellite. They are 125msec long pulses of 57.6kb data and have a bandwidth of around 50kHz. They are quite distinctive when you only hear one at a time but sometimes one can hear two or more signals at the same time and that sort of changes the sound:) 73 Graham G3VZV -Original Message- From: Tony Abbey Sent: Wednesday, October 26, 2011 8:56 PM To: r...@mssl.ucl.ac.uk Cc: Phil Guttridge ; amsat-bb@amsat.org Subject: [amsat-bb] Re: [Re: Prospero] Commanding Error Hi Roger Nothing other than the chuff- chuff on the 1600 pass. And as you said, its also there with Prospero over the horizon. I 'm not using a beam presently - using a 360deg parasitic Lindenblad for circular polarisation, but it is susceptible to all the high power pager stuff nearby. Its just strange that there are elements shifting in frequency in the chuff chuff like a signal from a real satellite. Have just come back from a Rosat re-entry celebration! Tony Abbey - Senior Research Fellow (retired) Space Research Centre Dept of Physics and Astronomy University of Leicester University Road SRC Web page: http://www.src.le.ac.uk LEICESTER LE1 7RH, United Kingdom On 26 Oct 2011, at 16:17, Roger Duthie wrote: Tony - We heard something intriguing after about 14:43:40 UT as the tracking said the satellite was on it's way off to the north pole. The 'chuff-chuff' description reminds me of a sound we seem to hear quite a lot. Quite often it coincides with a pass, though I think we hear the same (or very similar) during times when Prospero is over the horizon. We are going to try the next pass at ~16:00UT if you want to listen in again. Our new ploy is to wait for the last most opportune moment to command, as the power _may_ be at it highest (longest charging of batteries, potentially). So, we'll do short commanding at above 30o el, and listen. -Rr. Tony Abbey wrote: Hi Roger I could hear some chuff-chuff noises on the last pass and they show a related doppler shift (although I am not correcting sufficiently) as you can see in the attached plot. Maybe its some other noise but you never know. On 26 Oct 2011, at 13:39, Roger Duthie wrote: Commanding went well, from as far as we could make out. We're not sure if we're getting anything back, however. We'll be doing this pass today, hopefully: 26 Oct 7.3 15:31:43 10 S 15:38:26 60 E 15:46:11 10 NNE [Times in BST = UTC + 1]
[amsat-bb] 70 MPH S-band dish
Besides the occasional MDS dishes, is there a source now of larger commercial 2.4 GHz wire or mesh dishes? We want to outfit a van with a 4' dish for Balloon Tracking live downlink video and not have it blow off the roof at 70 MPH. I'm considering changing over many of our student projects to high altitude cubesats that can be completed in one semester and actually LAUNCHED (by balloons), as opposed to the occasional once every 3 or 4 year satellite missions which spend more time in bureaucracy than engineering for the students. Given that we only have the students for one semester. Bob, Wb4APR ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: 70 MPH S-band dish
I believe that would require a (ra)dome to make it aerodynamically acceptable. I would also believe it would require azimuth and elevation controls as well since the vehicle and object will be moving. 73, Jeff WB3JFS - Original Message - From: Bob Bruninga bruni...@usna.edu To: amsat-bb@amsat.org Sent: Thursday, October 27, 2011 2:35 PM Subject: [amsat-bb] 70 MPH S-band dish Besides the occasional MDS dishes, is there a source now of larger commercial 2.4 GHz wire or mesh dishes? We want to outfit a van with a 4' dish for Balloon Tracking live downlink video and not have it blow off the roof at 70 MPH. I'm considering changing over many of our student projects to high altitude cubesats that can be completed in one semester and actually LAUNCHED (by balloons), as opposed to the occasional once every 3 or 4 year satellite missions which spend more time in bureaucracy than engineering for the students. Given that we only have the students for one semester. Bob, Wb4APR ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Contact
I just worked an AO-51 pass at 1957UTC and had a contact with N4HML at EL98. I am unable to find this call sign in the QRZ database. In the FCC database, that call is registered to PRESCOTT JR, RICHARD H and the status is Expired 02/27/2007 and Canceled 02/28/2009. So, either the FCC is wrong or we have a bootlegger on the sats. Can anyone confirm this? -- *Carl W8KRF* ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] ARISSATTLM Website
It appears that the TLM website is not being updated. I have been submitting frames for the past three passes today (10/27) and the website is still showing frames from 0159UTC. Does anyone know the status of the live update server? 73, -- *Carl W8KRF* ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: E1Pu2 RAX2 downlink conflict?
Armando, that's correct, E1P and RAX-2 are now on different frequencies. Thanks to the IARU for helping us coordinate! --Jamie, KF6RFX On Mon, Oct 17, 2011 at 4:56 AM, Armando Mercado am25...@triton.net wrote: Hello, RAX-2 will be using 437.345 MHz 9600 baud, RHCP http://rax.engin.umich.edu/?page_id=138 73's Armando N8IGJ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: ELaNa III Cubesat Launch October 28
All, the satellites below are on schedule for launch tomorrow morning. Launch will be viewable here: http://gs.engin.umich.edu/predictions/tle_elana3.txt The initial keps are here. http://gs.engin.umich.edu/predictions/tle_elana3.txt. RAX-2, MCubed, E1P, and AubieSat are all trackable by most OSCAR stations. I am sure all the student teams would love to hear if HAMs world wide are picking up signals. 73s, --Jamie, KF6RFX On Thu, Oct 20, 2011 at 6:21 AM, Trevor . m5...@yahoo.co.uk wrote: The following info from the Cubesat reflector: The ELaNa III Cubesats being launched are listed below: Satellite: AubieSat-1 Downlink Freq: 437.475 MHz EIRP: .708W Modulation Scheme: Interrupted Continuous Wave (IWC) Protocol: Morse Code Baud Rate: 20wpm Satellite: DICE Downlink Freq: 465 MHz EIRP: -4.51dBW Modulation Scheme: OQPSK Protocol: CCSDS Baud Rate: Modulation data rate 1.5 megabit, Actual Tx bit rate 3.0 megabit Satellite: RAX-2 Downlink Freq: 437.345 MHz Modulation Scheme: GMSK Baud Rate: 9600 Satellite: M-Cubed (1) Downlink Freq: 437.485MHz EIRP: 1W Modulation Scheme: FSK Protocol: AX.25 Baud Rate: 9600 Satellite: Explorer-1[PRIME] Flight Unit 2 Downlink Freq: 437.505 MHz EIRP: -0.7dBW Modulation Scheme: Non-Coherent FSK Protocol: KISS Custom Baud Rate: 1200 Additional spacecraft information can be found on the satellite websites listed below: M-Cubed: http://umcubed.org/ DICE: http://www.sdl.usu.edu/programs/dice Explorer-1[PRIME] http://ssel.montana.edu/e1p/ RAX-2: http://rax.engin.umich.edu/ AubieSat-1: http://space.auburn.edu/ 73 Trevor M5AKA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: ARISSATTLM Website
All, Thanks for bringing this to my attention. It looks like the telemetry server had a slight hiccup. Telemetry was still being accepted and was saved, but the web pages were not being updated. I gave the telemetry server a gentle nudge. It has started updating the web pages again. The received telemetry will be uploaded to the telemetry archives shortly. 73, Douglas KA2UPW/5 -Original Message- From: Carl Rimmer W8KRF w8...@w8krf.net To: amsat-bb amsat-bb@amsat.org Sent: Thu, Oct 27, 2011 6:48 pm Subject: [amsat-bb] ARISSATTLM Website It appears that the TLM website is not being updated. I have been submitting frames for the past three passes today (10/27) and the website is still showing frames from 0159UTC. Does anyone know the status of the live update server? 73, -- *Carl W8KRF* ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] how it is done without amateur radio
http://www.nasa.gov/audience/foreducators/teachingfromspace/students/downlinks.html ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] expired call on the satellites
TODAY A CALL SHOWED UP ON THE AO51 SATELLITE THAT APPEARS IN THE FCC DATA BASE AS EXPIRED. THE CALL IS: *N4HML* /*THE FCC DATA BASE SHOWS THE LICENSE EXPIRED ON 02/27/2007 AND CANCELED ON 02/28/2009*/ IT MAY BE POSSIBLE THAT THE PERSON MAY NOT REALIZE THEIR LICENSE HAS EXPIRED, IF ANYONE KNOWS THIS PERSON THEY MIGHT GIVE THEM A CALL. IT MAY ALL BE AN OVERSIGHT OR ERRONEOUS DATA. THAT'S MY 2 CENTS WORTH FOR THE DAY K4FEG ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: 70 MPH S-band dish
Bob, We want to outfit a van with a 4' dish for Balloon Tracking live downlink video and not have it blow off the roof at 70 MPH. I'm considering changing over many of our student projects to high altitude cubesats that can be completed in one semester and actually LAUNCHED (by Please be careful - even a wire dish generates an enormous drag at 70MPH. Do you intend to actually use the antenna while driving, or only while parked? In either case, you would need a stabilized antenna with a radome (see the Swe-Dish SOTM), or a folding roof antenna like the Swe-Dish DA150 series (see http://www.rockwellcollins.com/sitecore/content/Data/Products/Communications_and_Networks/SATCOM/SWE-DISH_DA150K_Compact_Drive-Away_Antenna_System.aspx ). I don't work for Rockwell Collins / Swe-Dish or have any relationship with them. Commercial folding antennas are just expensive, while commercial stabilized antennas are terribly expensive. But they may be worth the cost if you are saving sat launches - and besides, I am sure anyone on this list would find good uses for them :) Miguel, EA1ICZ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Two Opportunities to Copy Direct ARISS School Contacts From ISS
Hello everyone, Here is a bit of news which would be border-line late if we waited for the weekend ANS news cycle: Two opportunities, one over Europe, and one over the United States to directly receive the ISS downlink on 145.800 MHz FM will occur early next week: + Kantonsschule Zug, Zug, Switzerland, direct via HB9KSZ on Mon 2011-10-31 14:56:19 UTC 39 deg elevation. + Sundance Elementary School, San Diego, California, direct via KI6ZUM on Tue 2011-11-01 20:00:45 UTC 42 deg elevation. In a recent communication of Fiscal Year 2011 accomplishments to the NASA education community, NASA Associate Administrator for Education Leland Melvin highlighted the accomplishments of ARISS: 10,743 curious students and 778 motivated educators participated in direct communication with International Space Station (ISS) crews via the Amateur Radio on the International Space Station (ARISS), sparking their interest in STEM. -- 73 de JoAnne K9JKM k9...@amsat.org Editor, AMSAT News Service ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: ELaNa III Cubesat Launch October 28
The initial keps have been loaded into the APRS pass predictor. For APRS users, to get a pass prediction for your QTH, make sure you've beaconed your position recently then send a message to one of the following stations and you should receive information on the next (or current) pass: SAT9 or DICEY SAT8 or DICEF SAT7 or RAX2 SAT6 (Mixed case sat names are not yet supported) SAT5 or E1PU2 SAT4 (Mixed case sat names are not yet supported) For more information on the satellite pass auto-responder, please see http://aprsisce.wikidot.com/doc:satsrv Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32 PS. Yes, you can also send an APRS message to ISS or AO51 to receive pass predictions for those satellites as well. On 10/27/2011 8:59 PM, James Cutler wrote: All, the satellites below are on schedule for launch tomorrow morning. Launch will be viewable here: http://gs.engin.umich.edu/predictions/tle_elana3.txt The initial keps are here. http://gs.engin.umich.edu/predictions/tle_elana3.txt. RAX-2, MCubed, E1P, and AubieSat are all trackable by most OSCAR stations. I am sure all the student teams would love to hear if HAMs world wide are picking up signals. 73s, --Jamie, KF6RFX On Thu, Oct 20, 2011 at 6:21 AM, Trevor .m5...@yahoo.co.uk wrote: The following info from the Cubesat reflector: The ELaNa III Cubesats being launched are listed below: Satellite: AubieSat-1 Downlink Freq: 437.475 MHz EIRP: .708W Modulation Scheme: Interrupted Continuous Wave (IWC) Protocol: Morse Code Baud Rate: 20wpm Satellite: DICE Downlink Freq: 465 MHz EIRP: -4.51dBW Modulation Scheme: OQPSK Protocol: CCSDS Baud Rate: Modulation data rate 1.5 megabit, Actual Tx bit rate 3.0 megabit Satellite: RAX-2 Downlink Freq: 437.345 MHz Modulation Scheme: GMSK Baud Rate: 9600 Satellite: M-Cubed (1) Downlink Freq: 437.485MHz EIRP: 1W Modulation Scheme: FSK Protocol: AX.25 Baud Rate: 9600 Satellite: Explorer-1[PRIME] Flight Unit 2 Downlink Freq: 437.505 MHz EIRP: -0.7dBW Modulation Scheme: Non-Coherent FSK Protocol: KISS Custom Baud Rate: 1200 Additional spacecraft information can be found on the satellite websites listed below: M-Cubed: http://umcubed.org/ DICE: http://www.sdl.usu.edu/programs/dice Explorer-1[PRIME] http://ssel.montana.edu/e1p/ RAX-2: http://rax.engin.umich.edu/ AubieSat-1: http://space.auburn.edu/ 73 Trevor M5AKA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
