Author Archives: PE0SAT

KickSAT packet explained

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KickSAT packet explained, the telemetry can be received at 437.505 MHz FM AX.25 1200 baud.

KickSat plusXTelemetry packet example: P4C,783,0,0,0,

In the example above, the first three letter code (P4C) indicates that the satellite is in charging mode. The next number is the battery voltage in units of 1/100 volt, so 783 corresponds to a battery voltage of 7.83 volts. The next number (zero) is the number of main flight computer resets (in our case a Nexus S smartphone thanks to the PhoneSat team). The next number is the number of watchdog microcontroller resets. The last number (zero) is a status byte indicating if the ChipSats have been deployed yet.

These packets are being transmitted by the watchdog microcontroller every 150 seconds (2.5 minutes). When the main flight computer is on, the rate is once every 30 seconds and more data will be included in the packets.

[PE0SAT Wants to thank Zac Manchester for the above information]

KickSAT Telemetry

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KickSAT Telemetry 19-04-2014

The transmit interval is 2.5 minutes so I was only able to decode two packets.

1:Fm KD2BHC To CQ Via TELEM  [18:27:16R] P4C,800,0,0,0,
1:Fm KD2BHC To CQ Via TELEM  [15:22:16R] P4C,800,0,0,0,

PhoneSAT 2.5 and KickSAT received

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PhoneSAT-KickSAT-Spectrum-AX25

PhoneSAT:
 1:Fm KJ6KRW To CQ Via TELEM  [23:22:13R]
   1 > C0 00 86 A2 40 40 40 40 60 96 94 6C 96 A4 AE 60 A8 8A 98 8A 
  21 > 9A 40 61 03 F0 50 35 44 20 20 5D E1 A7 20 20 58 ED CC 20 20 
  41 > 20 ED 94 A2 8F 25 8E A1 92 A9 91 B2 96 3F 30 ED FF FF 64 30 
  61 > 20 20 27 DD 8C 90 8E DC 8F E0 91 40 8E 5E 95 C6 FF FF 68 A7 
  81 > 63 AE 20 20 29 53 93 4C 95 2E 8E FA 92 71 91 50 95 47 20 20 
 101 > 38 A1 FF FF 20 20 2A A7 90 A2 8D DE 91 9C 93 BE 90 6C 94 58 
 121 > FF FF FF FF 20 20 20 20 2B FB 91 87 94 ED 90 75 93 CA 8F D1 
 141 > 93 F5 20 20 20 20 E9 C0
KickSAT
21:41:26 KD2BHC/TELEM>CQ>UI,?,F0
   1 > C0 00 86 A2 40 40 40 40 60 96 88 64 84 90 86 60 A8 8A 98 8A 
  21 > 9A 40 61 03 F0 50 34 43 2C 37 38 33 2C 30 2C 30 2C 30 2C C0

Recorded IQ file: download (available 18-04-2014 22:30 UTC) PhoneSAT and KickSAT

Cubesats on Falcon 9

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Cubesats on the Falcon 9 SpaceX CRS-3 mission. Current launch date and time is 18-04-2014 19:25 UTC. Successful launch.

CRS-3-Liftoff

P-POD Satellite Name Organization Size Beacon Details Info
1 SporeSat NASA Ames Research Center, Santa Clara University, Purdue University, and University of Texas 3U 437.1 MHz, AX.25, every 5 seconds. Amateur radio operators are encouraged to submit received beacon packets through the mission website to receive a web-based QSL card. More Info
3A TSAT Taylor University 2U More Info
3B PhoneSat-v2.5 NASA Ames Research Center 1U 437.425 MHz, AFSK, 30 second period whilst operational, 150 second beacon in charging mode More Info
4 ALL-STAR/THEIA Colorado Space Grant Consortium at the University of Colorado at Boulder 3U 2.4017 GHz S-Band Antenna, BPSK, every 15 seconds More Info
6 Kick Sat Cornell University 3U KickSat: 437.505 MHz, 1200 Baud, AFSK, AX.25 Packets
ChipSats: 437.240 MHz, Custom Protocol		 More Info

Preliminary TLE: (Update 18-04-2014 16:20 UTC)

ALL-STAR
1 99904U          14108.82875197  .00000477  00000-0  21100-5 0 00002
2 99904 051.6880 036.2255 0017296 294.2322 187.6538 15.83453650000012
KICKSAT
1 99902U          14108.82458530  .00000973  00000-0  40207-5 0 00008
2 99902 051.6689 036.2845 0022399 282.0950 176.0396 15.84690924000016
PHONESAT25
1 99901U          14108.82250197  .00000974  00000-0  40025-5 0 00005
2 99901 051.6697 036.3582 0022405 273.7528 172.4853 15.84797260000018
SPORESAT
1 99903U          14108.82666863  .00000843  00000-0  36053-5 0 00009
2 99903 051.6643 036.2776 0019904 288.7805 181.2153 15.84059851000017

Latest SpaceX information: Nasa SpaceX
Cubesat information: Cubesat.org

KickSAT launch postponed

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Kicksat sprite launchThe Falcon 9 launch that would place Cubesats in orbit and bring a cargo vessel to ISS from last monday was scrubbed due to a leaking helium stage. Therefor KickSAT with the Sprite satellites was also not launched. The launch is postponed until Friday 18 april 2014.

Latest information: Nasaflight.com