ARISSat-1 Getting Hotter

Sergey Samburov RV3DR with ARISSat-1

Sergey Samburov RV3DR with ARISSat-1

Ken W7KKE reports that ARISSat-1 is heating up as it starts to enter the Earth’s atmosphere, it can still be heard on 145.950 MHz FM but not for much longer.

On the AMSAT bulletin board he writes:

At 2055Z today [Friday] had a 77 deg pass. Highest temp was the -Z PPT 6 panel temp at 88 C. Yesteday it was temp was 74 C.  RF temp was 57 C which is one degree cooler than observed yesterday.

Keps were only 0.7 days old, but still had to manually chase the signal when it was near predicted TCA.

Ken Eaton GW1FKY posted this report on Friday evening:

Pleased to report lots of activity on the last two passes of ARISSat-1 over here in Europe today  (Friday)

Some calls at 1507 hrs  PD0RKC,  heard you and you were 5 X  8 but dropped to 5 X 5 rather quickly. At 1639 hrs heard ON4GP calling and then in contact with DG1ER, you were  both 5X7 prior to the satellite switching off in eclipse.

Nice to report the activity as we approach the end on the year and an era for ARISSat-1.

You can get orbital predictions times by selecting ARISSat-1 on the online prediction tool at http://www.amsat.org/amsat-new/tools/

A graph showing the descent of ARISSat-1 can be seen at http://www.qsl.net/py4zbz/arissat.htm#r

ARISSat-1 . . A Fun HAM Satellite! http://www.uk.amsat.org/2011/12/25/arissat-1-a-fun-ham-satellite/

AMSAT-UK publishes a colour A4 newsletter, OSCAR News, which is full of Amateur Satellite information.
Free sample issue at http://www.uk.amsat.org/on_193_final.pdf Join online at http://tinyurl.com/JoinAMSAT-UK

ARISSat-1 . . A Fun HAM Satellite!

 

ARISSat-1 . . A Fun HAM Satellite!

David Pruett KF7ETX has released this video of the amateur radio satellite ARISSat-1. There are only a few days left to hear it before it re-enters the Earth’s atmosphere.

The YouTube description reads:

Tune your radios / scanners to 145.950 and listen into the signal from ARISSat-1. ARISSat-1/KEDR Deployed on August 3, 2011 from the International Space Station (ISS). The mission of ARISSat-1/KEDR was specifically designed as an education-based satellite built by amateur radio operators to specifically interest students in scientific and technological careers.

Watch ARISSat-1 . . . A Fun HAM Satellite!

 

ISS & ARISSat-1 Predictions:
http://www.n2yo.com/

ARISSat Website
http://www.arissat1.org/v3/

You can find the details of the ARISSat-1/KEDR radio frequencies, links to telemetry decoding software and mission details on-line at:
http://www.amsat.org
http://arissat1.org

ARISSat-1/KEDR can be accessed on these frequencies:
+ 145.950 MHz FM Downlink
+ 435 MHz – 145 MHz Linear Transponder
+ 145.919 MHz CW Beacon
+ 145.920 MHz SSB BPSK-1000 Telemetry

The latest telemetry can be seen LIVE on your computer or cell phone
at: http://www.arissattlm.org/mobile

David Carr, KD5QGR has added ARISSat-1/KEDR to the list of satellites at the popular “Live OSCAR Satellite Status Page” at:
http://oscar.dcarr.org/ You are invited to submit your reports on this page.

Last chance to hear ARISSat-1
http://www.uk.amsat.org/2011/12/23/last-chance-to-hear-arissat-1/

Last chance to hear ARISSat-1

Sergey Samburov RV3DR with ARISSat-1

Sergey Samburov RV3DR with ARISSat-1

The amateur radio satellite ARISSat-1 may have only a few more days to live before it re-enters Earth’s atmosphere. Ken GW1FKY reports it’s putting out a strong signal in the early evening.

On the AMSAT bulletin board Ken writes:

I again monitored and worked into ARISSat-1 during the earlier pass and the final one as it entered eclipse over here in Europe.

The early pass was a low angle from my QTH and screened by buildings so I was not able to access the satellite. However the FM downlink was quite reasonable and I did hear someone active on CW.

The final pass as it moved into eclipse was really remarkable and my downlink and the FM transmissions were booming in . The loudest that I have ever heard from the satellite, in addition I quickly monitored the CW portion and someone was booming in, I could not stay at that end of the band as I was trying to make schedule on SSB. Heard someone calling but not able to confirm whom it was as they were not easy to copy.

Ken was listening in the early evening which seems to be a good time to hear the satellite. The satellite is only operational when its solar panels are illuminated. You can get orbital predictions times by selecting ARISSat-1 on the online prediction tool at http://www.amsat.org/amsat-new/tools/

If you hear the satellite on 145.950 MHz FM, you can get a certificate. Depending on what mode you copied, send an e-mail with the information to:
tlmreport@arissat1.org
secretword@arissat1.org
sstvreport@arissat1.org

Details at http://www.southgatearc.org/news/august2011/ arissat_1_reception_certificates.htm

There is also a CW contest if you send in 5 calls heard on the 145.920 MHz CW transmission of notable AMSAT people of the past & present email them to cwreport@arissat1.org

ARISSat-1 CW Contest http://www.uk.amsat.org/2011/10/10/arissat-1kedr-team-announces- cw-contest/

Catch the Last ARISSat-1 Telemetry http://www.uk.amsat.org/2011/11/09/catch-the-last-arissat-1-telemetry/

Get your colour ARISSat-1 Frequency Guide http://tinyurl.com/4t497t2

ARISSat-1 http://www.arissat1.org/

FrequencyCast ARISSat-1 Video

The UK Tech Podcast, FrequencyCast, has released a short video showing reception in Essex of FM voice and an SSTV image from the amateur radio satellite ARISSat-1.

The 145.950 MHz FM signal was recorded at 1055 UT on November 14, 2011 and was uploaded to support the feature at http://www.essexham.co.uk/arissat

Watch ARISSat-1 Amateur Radio Satellite Pass 14 Nov 2011

Catch the Last ARISSat-1 Telemetry Competition
http://www.uk.amsat.org/2011/11/09/catch-the-last-arissat-1-telemetry/

ARISSat-1 Re-entry Date January ? http://www.uk.amsat.org/2011/12/01/arissat-1-re-entry-date/

Essex Ham http://www.essexham.co.uk/

FrequencyCast – The UK’s TV and Tech Podcast http://www.frequencycast.co.uk/

ARISSat-1 Re-entry Date

Sergey Samburov RV3DR with ARISSat-1

Sergey Samburov RV3DR with ARISSat-1

The latest prediction from Jim N8OQ is that the amateur radio satellite ARISSat-1 will re-enter the Earths atmosphere in January.

On the AMSAT bulletin board Jim says “Using solar data through 2011 Nov. 30 and updating the decay fit. I am getting a re-entry date of 2012 January 12 with a rule-of-thumb error estimate of +/- 10 days or so for ARISSat-1.”

Since deployment in August, ARISSat-1 has descended about 60 km, and is currently losing more than 1.5 km per day. The rapid rate is partially the result of the recent solar activity on the atmosphere, significantly increasing the drag.

AMSAT wishes to collect telemetry data from the satellite as it approaches re-entry and is running a competition to see who can copy the final telemetry frames. Further details of the Catch the Last ARISSat-1 Telemetry Contest at
http://www.uk.amsat.org/2011/11/09/catch-the-last-arissat-1-telemetry/

ARISSat-1 http://www.arissat-1.org/

Online pass predictions (select ARISSat-1) http://www.amsat.org/amsat-new/tools/

Download the Windows and Mac versions of the ARISSatTLM free ground station soundcard demodulator and display software from http://www.arissattlm.org/

ARISSat-1 Frequency Guide http://tinyurl.com/4t497t2

ARISSat-1 – Gould Smith WA4SXM Interview

ARRL Test Engineer Bob Allison, WB1GCM, discusses the Amateur Radio satellite ARISSat-1/KEDR with Project Manager Gould Smith, WA4SXM, and talks with Jan King VK4GEY/W3GEY about OSCAR-5.

Watch the Gould Smith, WA4SXM, interview recorded at the 2011 AMSAT Symposium in San Jose, California. Videography by Jerry Ramie, KI6LGY.

The grab handles on ARISSat-1 were provided by a member of AMSAT-UK.

Watch the Jan King VK4GEY/W3GEY interview

ARISSat-1/KEDR update on YouTube
http://www.southgatearc.org/news/november2011/arissat1_update_on_youtube.htm

Catch the Last ARISSat-1 Telemetry Contest
http://www.southgatearc.org/news/november2011/catch_the_last_arissat1_telemetry_contest.htm

AMSAT-UK publishes a colour A4 newsletter, OSCAR News, which is full of Amateur Satellite information.
Free sample issue at http://www.uk.amsat.org/on_193_final.pdf