[amsat-bb] Sumbandila
Hello all Intended orbit is around 500km to meet the imaging payload requirements. At this altitude and with the limited propulsion on board, 3 years is a good estimate of the satellite lifetime due to re-entry. No reason why the electronics should not last much longer than this. The Soyuz Fregat will return to a lower altitude to drop Sumbandila off after the main payload has been released. 73 Pieter >Gunter's Space Page lists the primary payload, Meteor-M 1, as going into an >830 km orbit. >I'm guessing SumbandilaSat will end up in a similar orbit as I'm not aware >that the >launcher in question is capable of doing multi-drop of the payloads >into different orbits. >SumbandilaSat was originally scheduled to be launched from a submarine >platform, this >may be the source of the 500 km figure quoted, but the launch >vehicle changed. >Unfortunately I've no definative information on SumbandilaSat's intended >orbit. >Quoted design lifetimes are usually meaningless. For experimental systems it >just means >the time required to complete the primary experiment. For many >satellites it's quoted as 3 >or 6 months, but systems may continue to operate >for many years after the primary >objective has been completed. -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. ___ Sent via amsat...@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] Sumbandila blog
For those who would like to keep up with what is happening see the following: http://sumbandilamission.blogspot.com/ Regards ZS1PK/M0PAK -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. ___ Sent via amsat...@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] Sumbandila early operations
Hello all Saw some information being exchanged about Sumbandila. Please note that the Amateur payload will probably not be switched on straight after launch. Commissioning is most likely to be performed from Stellenbosch South Africa only. So telemetry will only be heard whilst in contact with the groundstation and NOT on the amateur frequencies. There are a number of hams involved in the project so rest assured the amateur payload will be supported as soon as practical and safe. Regards Pieter ZS1PK/M0PAK -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. ___ Sent via amsat...@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] Sumbandila (SO-67) in safe mode
Hi folks, Sumbandila (SO-67) entered a safe mode between our morning passes in South Africa and will only continue executing its schedule once an alarm is cleared. This implies that the V/U repeater will be off today until 18:00 UTC and probably for longer. 73 de ZR1CBC, Johann. ___ Sent via amsat...@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] Sumbandila (SO-67) schedule until 2010-10-17
Hi folks, SO-67 is again executing its schedule and the following passes should go ahead as initially planned: 2010-10-16 19:47 2010-10-16 20:36 2010-10-16 21:20 2010-10-16 22:38 2010-10-16 22:54 2010-10-16 23:55 We hope to upload the rest of the weekend schedule tomorrow morning around 06:00 UTC (see below). 73 de ZR1CBC, Johann. - 2010-10-17 06:35 2010-10-17 06:52 2010-10-17 10:00 2010-10-17 10:20 2010-10-17 11:53 2010-10-17 13:15 2010-10-17 13:32 2010-10-17 14:50 2010-10-17 16:23 2010-10-17 17:37 2010-10-17 17:56 2010-10-17 19:09 2010-10-17 19:29 2010-10-17 20:18 2010-10-17 21:01 2010-10-17 22:35 ___ Sent via amsat...@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] Sumbandila (SO-67) schedule until 2010-10-24
Hi folks, Please find below planned Sumbandila (SO-67) ham payload activations for the next few days (times in UTC; active for 15 minutes). Visit http://www.amsatsa.org.za for operating hints. 73 de ZR1CBC, Johann. - Central Asia 2010-10-20 02:57 2010-10-20 14:54 2010-10-21 04:12 2010-10-21 14:36 2010-10-22 03:53 2010-10-22 15:50 2010-10-23 03:34 2010-10-23 15:31 2010-10-24 03:15 2010-10-24 15:12 Africa 2010-10-20 07:49 2010-10-20 21:00 2010-10-21 20:42 2010-10-22 20:26 2010-10-23 08:24 2010-10-24 08:06 ___ Sent via amsat...@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] Sumbandila (SO-67) schedule until 2010-11-01
Hi folks, Please find below a list of planned Sumbandila (SO-67) ham payload activations for week 4 of the cycle (times in UTC; active for 15 minutes). Visit http://www.amsatsa.org.za for operating hints. 73 de ZR1CBC, Johann. - Africa (Mostly unfavourable passes for South Africa, in part to allow for University of Stellenbosch comms payload experiments next week, and due to a recently discovered commanding issue during ham payload activations. We are working to resolve this as soon as possible.) 2010-10-25 07:48 2010-10-25 20:45 2010-10-27 20:06 2010-10-28 08:32 2010-10-29 04:54 2010-10-30 20:59 2010-10-31 20:40 Australasia 2010-10-25 09:55 2010-10-25 22:04 2010-10-26 09:35 2010-10-26 21:45 2010-10-26 23:20 2010-10-27 10:50 2010-10-27 21:25 2010-10-28 10:32 2010-10-28 21:08 2010-10-28 22:42 2010-10-29 10:12 2010-10-29 22:23 2010-10-30 09:55 2010-10-30 22:05 2010-10-31 09:35 2010-10-31 11:10 Eastern Asia 2010-10-24 23:40 2010-10-25 11:48 2010-10-25 23:21 2010-10-26 00:55 2010-10-26 11:29 2010-10-27 00:36 2010-10-27 22:44 2010-10-28 00:17 2010-10-28 23:58 2010-10-29 12:07 2010-10-29 23:39 2010-10-30 11:47 2010-10-30 23:20 2010-10-31 00:54 2010-10-31 23:02 2010-11-01 00:36 ___ Sent via amsat...@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
