December 2011 - AMSAT-BB - mailman.amsat.org

Re: ARISSat : only a few more days !
by G0MRF＠aol.com 28 Dec '11

28 Dec '11

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, py4zbz(a)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.

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great pass
by ld.lucas＠frontier.com 27 Dec '11

27 Dec '11

Driving to my daughters in Ironton Ohio on Sunday afternoon around 2015UTC I had my handheld Wouxun on my 5/8 antenna scanning and heard the ARRISAT 1 pass. Could not believe how clear it was, sorry did not have anything to write down the particulars to send in. Does anyone have the Azimuth and elevation of that pass on Sunday EM88 area? Just very curious about the particulars for that pass. THANKS Larry KD8JHW

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ARISSat-1 (37772) decay date update for 2011 Dec 27
by DeYoung James 27 Dec '11

27 Dec '11

Greetings, The decay rate of ARISSat-1 has slowed down from the last decay prediction I produced on 2011 Dec. 14. It currently appears that ARISSat-1 (37772) will now decay on 2012 January 3 plus or minus a day. Caveat lector. Jim, N8OQ

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AO-7 contact
by K4FEG 27 Dec '11

27 Dec '11

Are there any stations in Mexico, Central or South America that is interested in working AO7? I am looking to try and work anyone on AO7 mode B. I am presently trying to get my antennas put up for working Mode A but it will be another week or more before I am ready to try Mode A. If anyone is interested in trying to work AO-7 Mode B please email me and we can run the predictions to see when would be a good time to try and make a contact. thank you very much & 73's Frank E. Griffin K4FEG

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Re: great pass
by Clint Bradford 27 Dec '11

27 Dec '11

QST magazine's Feb, 2011 article on working ARISSat-1 reposted with permission here for you ... http://www.work-sat.com/Work-Sat/ARISSat-1.html Clint Bradford, K6LCS

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ARISSat : only a few more days !
by Roland Zurmely 27 Dec '11

27 Dec '11

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.

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Re: ARISSat-1 RADIOSKAF-V KEDR
by DeYoung James 27 Dec '11

27 Dec '11

Farrell, An often used rule-of-thumb in astrodynamics for "decay" height is about 140 kilometers which is about 87 miles. A satellite that gets that far into the atmosophere will burn up during it's final orbit in short order! I would recommend you just keep trying until you are sure the satellite is no longer in orbit. I will post an updated decay prediction on AMSAT-BB this afternoon for operator planning purposes. Jim, N8OQ

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2012 Symposium
by Dee 27 Dec '11

27 Dec '11

I know the place (Orlando,FL.) but does anyone have the dates so I can put it in my calendar?? Usually weekend of Columbus day...???? 73, Dee, NB2F

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ARISSat-1 RADIOSKAF-V KEDR
by Farrell Winder 27 Dec '11

27 Dec '11

Does anyone have a prediction of the lowest altitude for ARISSat-1 and still have it be functional? With the latest Keps I show its altitude around 155 miles. Depending of signal strength on today's Cincinnati passes I might try another SSTV via the Transponder adjusting my Tx to receive on 145.930 MHz (+/- depending on location). Hope others will also try with voice and video. Farrell Winder, W8ZCF Cincinnati, Ohio

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Kingston ON, or Watertown NY?
by Bob Bruninga 27 Dec '11

27 Dec '11

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

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