[amsat-bb] Re: ARISSat : only a few more days !
Periodic reboosts are thus necessary every few months, usually undertaken by a Progress cargo ship docked to the Russian segment, or an Orbiter when docked to Destiny. http://suzymchale.com/ruspace/issorbit.html -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Wayne Estes Sent: Wednesday, December 28, 2011 4:16 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: ARISSat : only a few more days ! Out of curiosity, what method is used to keep the International Space Station from burning up? I know that periodic boosts are done to raise the orbit. Is that done with rocket engines built into the space station? If so, it seems that storage and eventual reloading of the fuel would be difficult and high-risk. Or is the ISS boosted using the engines of a docked vehicle? That seems like it would have its own set of complications. Wayne Estes W9AE Oakland, Oregon, USA, CN83ik ___ 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] ARRISSat-1 Decay from Space-Track
Hi, 60 day predictions on the Space-Track web site has ARISSat-1 object 37772 re entering 30th December. Based on the posts on this topic from Nico, Roland and James, and my calculations, I think we have a bit longer. But only a few days. 73 John G7HIA ___ 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: ARISSat : only a few more days !
Out of curiosity, what method is used to keep the International Space Station from burning up? I know that periodic boosts are done to raise the orbit. Is that done with rocket engines built into the space station? If so, it seems that storage and eventual reloading of the fuel would be difficult and high-risk. Or is the ISS boosted using the engines of a docked vehicle? That seems like it would have its own set of complications. Wayne Estes W9AE Oakland, Oregon, USA, CN83ik ___ 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] ARISSat-1
I wanted to let W6IHG that I did hear him through ARISSat-1 during my 1817 UTC pass. I have an audio recording of that pass. I believe I also heard WB2OQQ. There was also a station sending SSTV through the transponder but the station was not using Doppler. He went right out of the bandpass. I tried to follow but could not. I noticed that even though ARISSat-1 was in full sunlight, it went into Low Power mode. I was able to get a pretty decent SSTV copy during that pass, also. I am trying to determine what I am going to do when it terminates. It has taken up a good portion of my operating since August 4th. HI HI. There is another pass coming up in 5 mins (1951UTC). It will be a 13 degree pass so that should be pretty decent also. 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] Alive and kicking on 12/28 1812z NA pass - Re: Re: ARISSat-1 Dead? - No, Sir!
Just copied Arissat-1 including the English and Japanese messages, some details on battery voltage, along with the SSTV transmission. Have some cleanup to do on the wav file to get rid of the "static" before/after the transmissions (currently 16 MB !!), but will post it (where should it go?) Kind of scratchy but I was using an Arrow antenna indoors. Best copy is probably the SSTV transmission. 73 Bruce - W3NJ -Original Message- From: Craig Gagner To: 'Clint Bradford' ; 'AMSAT' Sent: Tue, Dec 27, 2011 6:53 pm Subject: [amsat-bb] Re: ARISSat-1 Dead? - No, Sir! No I havent posted them anywhere but here are the three from this most recent pass... BTW I'm 53 ! -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Clint Bradford Sent: Tuesday, December 27, 2011 3:26 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: ARISSat-1 Dead? - No, Sir! CRAIG W1MSG>> ... Another good pass on the East Coast USA in FN42 ... Downloaded two images and a really good long recording at 1822 UTC 59 degree elevation ... Craig - I have no idea how old you are chronologically. But I am in my mid-50s, and I STILL get excited with these reports ... Have you posted your images anywhere??? Clint K6LCS ___ 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
[amsat-bb] Chaos Communication Congress Dec 27-30
A atellite related topic at todays Chaos Communication Congress Building a Distrubuted Satellite Ground Station Network - A Call To Arms http://events.ccc.de/congress/2011/Fahrplan/events/4699.en.html Tomorrow - Not your Grandfathers moon landing http://events.ccc.de/congress/2011/Fahrplan/events/4821.en.html 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
[amsat-bb] Re: Shut Down of PCSAT Beacons
> If you could pass on to others. I shut it down > when I saw the message from Bob, around 1100hrs this morning. Great! Thanks doug. Sorry for the hassle, I probably sent my email prematurely, because after I sent it, I zoomed in on APRS.FI and that's when I not only saw your home station's info with your real email address but also that you were at that instant mobile in your -9. Duh..., so I sent you an APRS message from my radio to your mobile, but apparently just missed you, because I could see that you were no longer in your car at that point. Having just missed you a few minutes. Glad to see APRS texting worked so well! Today's efforts to recover PCSAT were hampered a little by UO11 which has also happened to come back alive.. I got connected, and got the first commands in, but it only held up about 11 minutes total before it died again. I'll try again on Thursday Morning. 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] AO-27 web page is back up!
I just got to looking and saw that the AO-27 web page is back up! Good news! 73 Ryan KD8ATF Sent from Yahoo! Mail on Android ___ 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: ARISSat : only a few more days !
> > > Message: 10 > Date: Tue, 27 Dec 2011 15:02:06 -0800 (PST) > From: Roland Zurmely > To: AMSAT > Subject: [amsat-bb] ARISSat : only a few more days ! > Message-ID: <1325026926.9426.yahoomail...@web36903.mail.mud.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > Within a few days, ARISSat will burn in the atmosphere! > The fall rate dh/dt is increasing dramatically! > Look at theupdatedgraphs of height and fall rate here: > > http://www.qsl.net/py4zbz/arissat.htm#r > > 73 de Roland. > > > Very cool Roland! I got my telemetry decode working just in time to enter the contest! Just out of curiosity, what is with the image appearing in the waterfall diagram? I've seen some 'green haze' like that in the transponder band when I receive it, but never anything discernible within it (nothing particularly audile either). If that is real, someone must be using up the whole transponder spectrum to send that odd picture! Thanks, Burns, W2BFJ ___ 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] Shut Down of VE3FFR PCSAT Beacon
For All Concerned Doug has shut down his PCSat beacon, see below Cheers & 73 Chip, VA3KGB From: Douglas Richards Sent: Tuesday, December 27, 2011 10:08 PM To: va3...@rac.ca Subject: Re: Shut Down your PCSAT Beacon Please from Bob, WB4APR Chip If you could pass on to others. I shut it down when I saw the message from Bob, around 1100hrs this morning. Thank you 73 Doug On 12/27/2011 7:58 PM, CJ Chapman wrote: from the AMSAT list - This message is for you Doug Cheers Chip Message: 13 Date: Tue, 27 Dec 2011 10:35:32 -0500 From: "Bob Bruninga" To: , , , , Cc: 'TAPR APRS Mailing List' , amsat-bb@amsat.org Subject: [amsat-bb] Kingston ON, or Watertown NY? Message-ID: <045501ccc4ad$2badab90$830902b0$@edu> Content-Type: text/plain; charset="us-ascii" Anyone near Kingston Ontario or Watertown, NY that can contact VE3FFR? His email is not listed with QRZ and I need to ask him to shut down his PCSAT beacon. This would reduce the load on PCSAT so that maybe I can get a command in to get control and maybe make a recovery. Next recovery effort will be dawn passes on Wed 28 Dec 2011. PCSAT is almost responding. I only need to get one exchange of packets successfully to do a recovery. We need everyone to turn off all transmitters and reserve PCSAT power so we can complete the command/ack sequence. You may continue to work the ISS, but ONLY if it is in view and is operating. Otherwise, please, no transmissions on 145.825. No unattended beacons... Adding also to the 145.825 channel QRM is UO-11 that appears to also have come back to life. Thanks, Bob, WB4APR -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ 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-7
I had a nice Mode A QSO with Brent, VA5MS, on the 1407-1427 pass this morning. Also heard KC9ELU but the bird was a bit far to the west for him. AO-7 will be in Mode A for most of SKN, so get those 10-meter antennas ready! CU then, Ray W2RS ___ 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: ARISSat : only a few more days !
Hi Roland. That is really impressive. May I reproduce your graphs for a display for our schools physics classes ?? Callsign left in place so they can 'google' your call. Many thanks David In a message dated 27/12/2011 23:14:39 GMT Standard Time, py4...@yahoo.com writes: Within a few days, ARISSat will burn in the atmosphere! The fall rate dh/dt is increasing dramatically! Look at theupdatedgraphs of height and fall rate here: http://www.qsl.net/py4zbz/arissat.htm#r 73 de Roland. ___ 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
