AO-27 active update.
Update: It isn’t active yet!
It has not yet been recovered. The command team turned the transmitter on to test it out on June 28th, but they still need to upload the secondary boot-loader and then the high level code necessary to operate the satellite. The issue in the past has been that the satellite crashes when they try to run high level code. We will see if they’ve managed to work around that problem (probably radiation damage to a section of the satellite’s memory).
Please do not transmit unless you hear the FM repeater functioning. Any interference while the command team is attempting to upload new code will significantly prolong the recovery process.
Source: N8HM (07-07-2015 12:48 UTC)
After I had read the news on the Amsat-BB about AO-27 being active again, I visited the AO-27 website and found the following information.
June 28, 2015:
AO-27 Turned on today. Seems good on the bootloader. If anyone has contacts into CelesTrak to get AO-27 back into the amateur.txt file it would help some of the control operators stations. Our e-mails have gone unanswered.
- Michael, N3UC
- Dan, KM4HZJ
- James, N3UCC
April 18, 2015:
AO-27 Turned on today. Uploaded Secondary boot loader
- Michael, N3UC
April 12, 2015:
Turned on High power to check power output. Looks good.
- Michael, N3UC
Lets listen for the satellite, decode some telemetry and pass it on to the operators so they have a clear idea about the health of AO-27 (EYESAT-1). Don’t transmit unless you hear the FM repeater functioning.
Current Space-Track TLE:
AO-27 1 22825U 93061C 15186.11965546 .00000058 00000-0 40075-4 0 9999 2 22825 098.7096 136.2347 0007264 255.0254 170.5745 14.29889618135507
Modes
Analogue Low = 145.850MHz Up <==> 10mW 436.797MHz Down Analogue Med = 145.850MHz Up <==> 500mW 436.797MHz Down Analogue High = 145.850MHz Up <==> 4W 436.797MHz Down Digital Low = NO Up ==> 10mW 436.797MHz AFSK 1200bps Down Digital Med = NO Up ==> 500mW 436.797MHz AFSK 1200bps Down Digital High = NO Up ==> 4W 436.797MHz AFSK 1200bps Down