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.
Thanks for the info Pieter.
73 Trevor M5AKA
--- On Wed, 12/8/09, Pieter Kotze pkotze@csir.co.za wrote:
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
I like to Thanks in public Patrick Stoddard for his dedication as a satellite operator and for this great Gridxpeditions from him that allow me to log a bunch of grids I worked 13 of the 14 grids he visited on his July trip and also last week on DM54 and 55. as a relatively new satellite use I'm so glad there is people like Patrick WD9EWK, John K8YSE, and his son KD8CA0 Douglas, that helped me log new grids and inspire me to keep going on. Thanks all of you people for your support!!!!! 73's from KI6YAA Larry _________________________________________________________________ Get your vacation photos on your phone! http://windowsliveformobile.com/en-us/photos/default.aspx?&OCID=0809TL-H...
Hi Larry and the group,
Patrick's cards arrive here today as well. Actually the mailbox was quite full and happy with a total of 8 new grids confirmed, 6 from Patrick alone. Kudos to K8YSE, KD8CAO, ND9M and numerous others who've attributed to helping an addiction.....satellite VUCC. :)
73,
Jeff WB3JFS Las Vegas, NV DM26
----- Original Message ----- From: "Larry Teran" satvader@hotmail.com To: amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 1:58 PM Subject: [amsat-bb] WD9EWK cards arrived today!!!!!!
I like to Thanks in public Patrick Stoddard for his dedication as a satellite operator and for this great Gridxpeditions from him that allow me to log a bunch of grids I worked 13 of the 14 grids he visited on his July trip and also last week on DM54 and 55. as a relatively new satellite use I'm so glad there is people like Patrick WD9EWK, John K8YSE, and his son KD8CA0 Douglas, that helped me log new grids and inspire me to keep going on. Thanks all of you people for your support!!!!! 73's from KI6YAA Larry _________________________________________________________________ Get your vacation photos on your phone! http://windowsliveformobile.com/en-us/photos/default.aspx?&OCID=0809TL-H... _______________________________________________ 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
I would also like to pass along my thanks in Patrick's efforts and do appreciate all that he has done and is doing to promote the addiction of operating satellites. Also, congrat's on making W.A.S. via satellites.
73 de John W6ZKH
----- Original Message ----- From: "Jeff Yanko" wb3jfs@cox.net To: "Larry Teran" satvader@hotmail.com, amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 2:29:13 PM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] Re: WD9EWK cards arrived today!!!!!!
Hi Larry and the group,
Patrick's cards arrive here today as well. Actually the mailbox was quite full and happy with a total of 8 new grids confirmed, 6 from Patrick alone. Kudos to K8YSE, KD8CAO, ND9M and numerous others who've attributed to helping an addiction.....satellite VUCC. :)
73,
Jeff WB3JFS Las Vegas, NV DM26
----- Original Message ----- From: "Larry Teran" satvader@hotmail.com To: amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 1:58 PM Subject: [amsat-bb] WD9EWK cards arrived today!!!!!!
I like to Thanks in public Patrick Stoddard for his dedication as a satellite operator and for this great Gridxpeditions from him that allow me to log a bunch of grids I worked 13 of the 14 grids he visited on his July trip and also last week on DM54 and 55. as a relatively new satellite use I'm so glad there is people like Patrick WD9EWK, John K8YSE, and his son KD8CA0 Douglas, that helped me log new grids and inspire me to keep going on. Thanks all of you people for your support!!!!! 73's from KI6YAA Larry _________________________________________________________________ Get your vacation photos on your phone! http://windowsliveformobile.com/en-us/photos/default.aspx?&OCID=0809TL-H... _______________________________________________ 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
To all:
Wow! What a day. First 8 grids confirmed. Now, just come to find out that the 7O1YGF DXpedition by German nationals waaaaaaay back in April 2000 will finally count for DXCC. So anybody on the -BB that has worked 7O1YGF and received confirmation, the QSL will now count!
73,
Jeff WB3JFS Las Vegas, NV DM26
----- Original Message ----- From: w6zkh@comcast.net To: Jeff Yanko Cc: Larry Teran ; amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 4:30 PM Subject: Re: [amsat-bb] Re: WD9EWK cards arrived today!!!!!!
I would also like to pass along my thanks in Patrick's efforts and do appreciate all that he has done and is doing to promote the addiction of operating satellites. Also, congrat's on making W.A.S. via satellites.
73 de John W6ZKH
----- Original Message ----- From: "Jeff Yanko" wb3jfs@cox.net To: "Larry Teran" satvader@hotmail.com, amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 2:29:13 PM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] Re: WD9EWK cards arrived today!!!!!!
Hi Larry and the group,
Patrick's cards arrive here today as well. Actually the mailbox was quite full and happy with a total of 8 new grids confirmed, 6 from Patrick alone. Kudos to K8YSE, KD8CAO, ND9M and numerous others who've attributed to helping an addiction.....satellite VUCC. :)
73,
Jeff WB3JFS Las Vegas, NV DM26
----- Original Message ----- From: "Larry Teran" satvader@hotmail.com To: amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 1:58 PM Subject: [amsat-bb] WD9EWK cards arrived today!!!!!!
I like to Thanks in public Patrick Stoddard for his dedication as a satellite operator and for this great Gridxpeditions from him that allow me to log a bunch of grids I worked 13 of the 14 grids he visited on his July trip and also last week on DM54 and 55. as a relatively new satellite use I'm so glad there is people like Patrick WD9EWK, John K8YSE, and his son KD8CA0 Douglas, that helped me log new grids and inspire me to keep going on. Thanks all of you people for your support!!!!! 73's from KI6YAA Larry _________________________________________________________________ Get your vacation photos on your phone! http://windowsliveformobile.com/en-us/photos/default.aspx?&OCID=0809TL-H... _______________________________________________ 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
Ditto from Memphis,
Patrick made a special effort to get my new grids to me today so I could turn in another batch this weekend at the Huntsville, AL Hamfest.
Great Job Patrick!
73 and Thanks again, Rick - WA4NVM, LM1339
I would also like to pass along my thanks in Patrick's efforts and do appreciate all that he has done and is doing to promote the addiction of operating satellites. Also, congrat's on making W.A.S. via satellites.
73 de John W6ZKH
----- Original Message ----- From: "Jeff Yanko" wb3jfs@cox.net To: "Larry Teran" satvader@hotmail.com, amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 2:29:13 PM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] Re: WD9EWK cards arrived today!!!!!!
Hi Larry and the group,
Patrick's cards arrive here today as well. Actually the mailbox was quite full and happy with a total of 8 new grids confirmed, 6 from Patrick alone. Kudos to K8YSE, KD8CAO, ND9M and numerous others who've attributed to helping an addiction.....satellite VUCC. :)
73,
Jeff WB3JFS Las Vegas, NV DM26
----- Original Message ----- From: "Larry Teran" satvader@hotmail.com To: amsat-bb@amsat.org Sent: Wednesday, August 12, 2009 1:58 PM Subject: [amsat-bb] WD9EWK cards arrived today!!!!!!
I like to Thanks in public Patrick Stoddard for his dedication as a satellite operator and for this great Gridxpeditions from him that allow me to log a bunch of grids I worked 13 of the 14 grids he visited on his July trip and also last week on DM54 and 55. as a relatively new satellite use I'm so glad there is people like Patrick WD9EWK, John K8YSE, and his son KD8CA0 Douglas, that helped me log new grids and inspire me to keep going on. Thanks all of you people for your support!!!!! 73's from KI6YAA Larry _________________________________________________________________ Get your vacation photos on your phone! http://windowsliveformobile.com/en-us/photos/default.aspx?&OCID=0809TL-H... _______________________________________________ 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
participants (6)
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Jeff Yanko -
Larry Teran -
Pieter Kotze -
Rick - WA4NVM -
Trevor . -
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