Category Archives: Grifex

Elana-X Cubesats Active

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All Elana-X Cubesats are received, only EXOCube is still not 100% sure because data is seen in the SDR spectrum but the signals are very weak.

I have made two IQ recordings, one from 31-01-2015 just after GRIFEX enabled its beacon and early morning 01-02-2015. The first one is the pass-band where Firebird-2 FU3 and GRIFEX are in and the second file is Firebird-2 FU4 and EXOCube.

FB-2 FU4 and EXOCube 01-02-2015 07:48 UTC

Firebird-II FU4 Telemetry 01-02-2015 07:48 UTC

1:Fm K7MSU To K7MSU
   1 > C0 00 96 6E 9A A6 AA 40 60 96 6E 9A A6 AA 40 E1 03 F0 DB DC 
  21 > 55 04 55 01 00 06 00 00 54 9F 03 41 00 02 00 00 2D 2C 00 01 
  41 > DE A8 03 3A 00 00 01 DE 15 00 00 2D 1E 03 39 03 39 00 00 00 
  61 > 00 00 00 00 03 01 D0 02 7F 02 87 02 15 02 0F 00 07 00 08 01 
  81 > 8D 01 8F 03 AC 02 6B 02 65 02 6E 02 69 01 C8 01 D4 02 69 00 
 101 > F9 00 0D 00 00 00 00 00 3E 00 2E 00 05 00 19 00 19 00 18 00 
 121 > 17 00 16 00 15 00 B6 00 17 1E A0 0E E8 00 00 00 00 00 00 00 
 141 > 00 00 8C 00 1C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 161 > 00 03 1B 13 41 02 6D 02 67 02 6A 02 6C 02 64 02 65 7F D5 7F 
 181 > FA 80 26 80 26 80 1E 7F ED BB 94 DB DC C0

Firebird-II FU3 Telemetry 31-01-2015 17:13 UTC

from K7MSU to K7MSU
000 > C0 00 96 6E 9A A6 AA 40 60 96 6E 9A A6 AA 40 E1 03 F0 DB DC 
020 > AA 04 AA 01 00 0E 00 00 13 8C 0E 0B 05 00 0A 03 34 00 20 7B 
040 > 0A 00 83 00 00 72 6B 01 01 00 02 00 00 00 00 00 4E 02 37 02 
060 > 29 00 00 00 00 01 7A 00 6C 00 0F 00 00 00 02 AA 00 00 00 00 
080 > 00 00 00 00 03 52 00 01 00 00 00 01 06 06 00 00 10 9F 00 00 
100 > 00 06 2E 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 01 
120 > 1A 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
140 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
160 > 00 00 00 00 00 00 00 00 00 00 EF 12 DB DC C0

GRIFEX Telemetry 31-01-2015 17:49 UTC

from CQ to KD8SPS
   1 > C0 00 96 88 70 A6 A0 A6 60 86 A2 40 40 40 40 E1 03 F0 AB CD 
  21 > 00 00 00 42 03 F5 00 B4 75 16 10 00 00 00 00 1A 00 10 00 06 
  41 > 00 01 00 23 00 37 11 EE 7B C9 71 01 CA CB 00 00 7E 2A 00 00 
  61 > 12 00 1B 00 71 00 00 00 00 28 08 00 00 29 06 21 06 F9 0C 5D 
  81 > 00 27 00 F1 0C B8 0E 0C 00 A5 0E E3 05 47 06 B2 0E 0E 00 63 
 101 > 0D 1C 00 17 00 F9 0C 8B 00 54 00 14 06 63 0D 80 00 F6 0C AF 
 121 > 00 DB DD 00 0E 00 2F 02 0D 00 00 06 01 06 66 0A C4 00 03 0F 
 141 > 41 00 FB 05 FF 05 A8 00 02 00 2A 02 07 00 0D 06 0D 06 97 0A 
 161 > F3 00 2D 0F 53 00 05 06 09 06 01 FC 4E 06 4B 06 4F 06 00 DB 
 181 > DC 1E 00 5A 00 53 FF 65 00 C2 FF 12 00 99 00 AE FF 45 00 E8 
 201 > 00 F6 FF DB DD 00 4A 0B 40 0B 39 0A 27 0A 36 0A 41 0A BE 0A 
 221 > C4 0A 36 06 BE 09 03 00 00 00 88 33 88 33 4C 00 00 00 00 00 
 241 > 00 00 00 E3 03 00 00 01 00 FF FF FF FF FF FF FF FF FF FF FF 
 261 > 24 94 B0 15 1C 40 C0

Based on the launch sequence and the new TLE made available via Space-track I will be using the following Kepler data for the upcoming passes.

FIREBIRD-2-FU3
1 40377U 15003B   15032.23998870 -.00000111  00000-0  00000+0 0    47
2 40377 099.1229 040.8394 0160422 338.5296 020.9352 15.04145247    97
FIREBIRD-2-FU4
1 40378U 15003C   15032.23997153 -.00000113  00000-0  00000+0 0    43
2 40378 099.1283 040.8489 0167282 337.6984 021.7000 15.04199923    97
GRIFEX
1 40379U 15003D   15032.24001357 -.00000113  00000-0  00000+0 0    47
2 40379 099.1258 040.8456 0166294 338.7028 020.7326 15.04106125    99
EXOCUBE
1 40380U 15003E   15032.17351219 -.00000113  00000-0  00000+0 0    46
2 40380 099.1346 040.7708 0166270 338.5236 020.9052 15.04039583    81

EXOCube Beacon 3OXWith the help of the image from the IQ analysis on the top of this message, Logan Sisca found the following beacon message. Well done.

GRIFEX active and decoded

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With the help of the recorded IQ file that can be downloaded at the following location, I was able to decode and send a couple of kiss packets to the GRIFEX telemetry server. Below you can see the data decoded by the MXL Ground Station Client.

GRIFEX-GS-client

2015-01-31 17:49:22.300 UTC: [267 Bytes KISS Frame (without CRC)]
   1 > C0 00 96 88 70 A6 A0 A6 60 86 A2 40 40 40 40 E1 03 F0 AB CD 
  21 > 00 00 00 42 03 F5 00 B4 75 16 10 00 00 00 00 1A 00 10 00 06 
  41 > 00 01 00 23 00 37 11 EE 7B C9 71 01 CA CB 00 00 7E 2A 00 00 
  61 > 12 00 1B 00 71 00 00 00 00 28 08 00 00 29 06 21 06 F9 0C 5D 
  81 > 00 27 00 F1 0C B8 0E 0C 00 A5 0E E3 05 47 06 B2 0E 0E 00 63 
 101 > 0D 1C 00 17 00 F9 0C 8B 00 54 00 14 06 63 0D 80 00 F6 0C AF 
 121 > 00 DB DD 00 0E 00 2F 02 0D 00 00 06 01 06 66 0A C4 00 03 0F 
 141 > 41 00 FB 05 FF 05 A8 00 02 00 2A 02 07 00 0D 06 0D 06 97 0A 
 161 > F3 00 2D 0F 53 00 05 06 09 06 01 FC 4E 06 4B 06 4F 06 00 DB 
 181 > DC 1E 00 5A 00 53 FF 65 00 C2 FF 12 00 99 00 AE FF 45 00 E8 
 201 > 00 F6 FF DB DD 00 4A 0B 40 0B 39 0A 27 0A 36 0A 41 0A BE 0A 
 221 > C4 0A 36 06 BE 09 03 00 00 00 88 33 88 33 4C 00 00 00 00 00 
 241 > 00 00 00 E3 03 00 00 01 00 FF FF FF FF FF FF FF FF FF FF FF 
 261 > 24 94 B0 15 1C 40 C0

UZ7HO-kiss-serverI used the UZ7HO G3RUH 1.7 beta sound modem software and enabled the Kiss server on port 9100. After that I configure the config.props file that is part of the MXL Ground Station Client software to use the kiss server port. Below the config.props I used.

Don’t use the tcp to serial option that comes with the GS client software. There is a direct connection between the GS client and UZ7HO via in my example port 9100.

radio.1.name=Radio
radio.1.address=localhost
radio.1.port=9100
radio.1.type=KISS
radio.1.tncport=1

client.callsign=PE0SAT
client.id=PE0SAT_GS
server.address=mxlab.engin.umich.edu
server.port=12805

librap.SID=50
librap.PID=0

api.crafts=https://mxl-ops.engin.umich.edu/api/craft?count=25
api.command=https://mxl-ops.engin.umich.edu/api/commands/
api.raps=https://mxl-ops.engin.umich.edu/api/raps

Good luck decoding GRIFEX with this setup.