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

Re: ARISSat-1 - Dumb Question
by G0MRF＠aol.com 11 Feb '11

11 Feb '11

In a message dated 09/02/2011 06:08:45 GMT Standard Time, clintbradford(a)mac.com writes: >> ... Clint. When ARISSAT is released it will stay in the "Plane" of ISS orbit...they will toss it retrograde meaning in the opposite direction of the velocity vector and with its slightly lower velocity the orbit will start to decrease...this is done so that very quickly the orbits will stop being "prox ops" reasonably fast. Great, succinct info - MANY thanks! Clint, K6LCS Hmm. This is a bit of a brain teaser... So if the satellite is deployed towards the rear of the ISS, it's velocity will be slightly lower. So does that mean it will go to a lower orbit- (Same as firing retros to reenter)? If so, then I believe as the orbit altitude is reduced, the apparent velocity increases.....(??) which will cause ARISsat-1 to 'move ahead' of the ISS over a few hours But didn't we say the velocity would be less than the ISS due to the method of deploying it against the velocity vector ? Time for me to have a Tuna sandwich. We all know it's probably full of Dolphin...and they are really clever. David G0MRF

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audio excerpts of 03:11 UTC ARISSat-1 pass on ISS
by n4csitwo＠bellsouth.net 11 Feb '11

11 Feb '11

Here is some excerpts from the 03:11 UTC ARISSat-1 on ISS pass over Orlando, FL. I deleted stretches of noise between the audio I heard as to make this short. First is a little of the voice telemetry, then the ID and message, finally a faint SSTV frame that starts just as it goes over the horizon. This was using a TH-D7AG with an Arrow antenna and no preamp. Dave, AA4KN

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ARISSat Signal ?
by Mani VU2WMY 11 Feb '11

11 Feb '11

Just heard a CW signals on 145.919 during the 03:50 low angle pass (Max ele 4 deg). Could some one confirm, is it from ARISSat under test on board the ISS ? 73 de Mani, VU2WMY Secretary & Station-In-Charge Upagrah Amateur Radio Club VU2URC ISRO Satellite Centre HAL Airport Road, Bangalore-560 017. Phone:(O)91-80-25082054/2598/2192 Mobile: 91-80-98803 41456 E-mail ID: wmy(a)isac.gov.in vu2wmy_mani(a)yahoo.com isrohams(a)yahoo.com ------------------------------------------------------------------------------ Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. ------------------------------------------------------------------------------

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Re: ARISSat-1 over SE USA
by Mark L. Hammond 11 Feb '11

11 Feb '11

Ditto! I was surprised to see it going off and on...not sufficient to print any telem yet. 73, Mark N8MH At 10:25 PM 2/10/2011 -0500, you wrote: >It was on during the 10PM EST pass, although not continuously. I recorded it via SDR and will try to decode this evening. > >73, Drew KO4MA > > >_______________________________________________ >Sent via AMSAT-BB(a)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

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ARISSat-1 heard
by santanaamt＠aol.com 11 Feb '11

11 Feb '11

Sorry it is suppose to say @ 0335 UTC, but here it is at 23:25 or 11:25pm. But the hype is on! Angel - GW

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ARISSat-1 heard .. . .
by santanaamt＠aol.com 11 Feb '11

11 Feb '11

My friend Jose - KP4JRS got to hear part of the kids message on a ISS pass at 23:25 UTC here in the Caribbean! Keep radios tuned! Angel - WP3GW

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ARISSat-1
by Andrew Squires 11 Feb '11

11 Feb '11

Heard Horsham Australia at 0235z 146.950 IC-92AD Quarter wave whip. 73 Andy VK3AS

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ARISSat-1 over SE USA
by Andrew Glasbrenner 11 Feb '11

11 Feb '11

It was on during the 10PM EST pass, although not continuously. I recorded it via SDR and will try to decode this evening. 73, Drew KO4MA

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Re: Spacewalk From International Space Station Will Air On NASA TV
by Clint Bradford 11 Feb '11

11 Feb '11

Confirming the time ... February 16, Wednesday 7:45AM EASTERN / 4:45AM PACIFIC ISS Expedition 26 Russian Spacewalk Coverage Spacewalk begins at 8:15AM EASTERN / 5:15AM PACIFIC Johnson Space Center Public and Media Channels NASA TV: http://tinyurl.com/ARISSat1-deploy Clint, K6LCS http://www.worksatellites.com

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ARISSat-1 on 145,950 MHz
by gu6efb 11 Feb '11

11 Feb '11

I heard ARISSat-1 on 145,950 MHz at 00:20: UTC in IN89RK St Andrew's Guernsey orbit 70104 of ISS Transmitting both voice and SSTV sounded like robot mode 36 nice and strong here 73 Keith GU6EFB

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