ISS Cubesat Deployment (JAXA) J-SSOD#27 - 2023-12-18 08:35 UTC

Satellites & Observations Launches
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From JAXA site:

On December 18, 2023, the following 2 CubeSats will be deployed from the Japanese Experiment Module “Kibo”.

BEAK

BEAK is jointly developed by the University of Tokyo, Nippon University, and JAXA.

Clark sat-1

Clark sat-1 is provided by the J-SSOD service provider, Space BD Inc.

The deployment event for those satellites by J-SSOD#27 will be broadcast via YouTube JAXA Channel.

Dec. 18, 2023 (Monday)
※The date and time of the deployment are subject to change due to the ISS schedule modification.

Temporary NORAD ID Satellite Frequency Notes Deployed
AMATEUR UHF
98961 CLARKSAT-1 435.130 MHz IARU ISS(KIBO module) - Directly
NOT IN DB
- BEAK 1623.83 MHz from ITU entry (Intersatellite Communication - IRIDIUM) ISS(KIBO module) - Directly

Latest Update: 2023-12-17 17:30 UTC

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Clark sat-1 has been deployed successfully.

We are going to use the latest ISS TLE set for tracking it for now. Here is the TLE set changed to use the temporary NORAD ID from DB:

Clark sat-1
1 98961U 98067A   23351.90722637  .00018430  00000-0  32438-3 0  9992
2 98961  51.6406 138.5176 0002199  38.2837  98.4608 15.50501267430284
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First received by @blueskies’s station SatNOGS Network - Ground Station ZL2MST in SatNOGS Network - Observation 8730243. These are the very first transmissions of the satellite which was expected to transmit at 10:45 UTC.

The signal is faint but both GMSK and CW (~380s and ~500s) are there.

Consequent passes have verified these faint signals.

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Pass on 11:35 utc over Europe:

000: c0 00 4a 53 31 59 4c 55 4a 53 31 59 4c 54 b7 d3 …JS1YLUJS1YLT…
010: 00 00 9c 4e 90 00 01 ff ff ff ff ff ff ff ff ff …N…

000: c0 00 4a 53 31 59 4c 55 4a 53 31 59 4c 54 b7 d3 …JS1YLUJS1YLT…
010: 00 00 a6 4e 70 00 02 ff ff ff ff ff ff ff ff ff …Np…

000: c0 00 4a 53 31 59 4c 55 4a 53 31 59 4c 54 b7 d3 …JS1YLUJS1YLT…
010: 00 00 a1 4e 60 00 01 ff ff ff ff ff ff ff ff ff …N`…

000: c0 00 4a 53 31 59 4c 55 4a 53 31 59 4c 54 b7 d3 …JS1YLUJS1YLT…
010: 00 00 a8 4e 20 00 02 ff ff ff ff ff ff ff ff ff …N …

js1ylt clarr1 sl87b6 00900c00
js1ylt clarr1 sl859 00100c00

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New TLE set for “Clark sat-1”, as the TLE is based on recent observation but is based on ISS TLE set, thus it may not be fully accurate:

CLARK SAT-1
1 98961U          23352.80000000  .00000000  00000-0  32438-3 0    02
2 98961  51.6406 133.6855 0002024  38.5361  45.8868 15.51023279    06

clark_352.dat (1.5 KB)
sites.txt (5.1 KB)

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Orbit 12. 5 telemetry frames received and decoded from Clark Sat. 4800 GMSK Non AX-25 frames:

0000: C0 00 4A 53 31 59 4C 55 4A 53 31 59 4C 54 B7 D3
0010: 00 00 A5 4F 00 00 04 FF FF FF FF FF FF FF FF FF
0020: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0030: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0040: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0060: FF C0

À.JS1YLUJS1YLT·Ó…¥O…ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÀ

0000: C0 00 4A 53 31 59 4C 55 4A 53 31 59 4C 54 B7 D3
0010: 00 00 A1 4F 20 00 05 FF FF FF FF FF FF FF FF FF
0020: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0030: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0040: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0060: FF C0

À.JS1YLUJS1YLT·Ó…¡O …ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÀ

0000: C0 00 4A 53 31 59 4C 55 4A 53 31 59 4C 54 B7 D3
0010: 00 00 9C 4F 10 00 01 FF FF FF FF FF FF FF FF FF
0020: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0030: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0040: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0060: FF C0

À.JS1YLUJS1YLT·Ó…œO…ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÀ

0000: C0 00 4A 53 31 59 4C 55 4A 53 31 59 4C 54 B7 D3
0010: 00 00 A7 4E D0 00 02 FF FF FF FF FF FF FF FF FF
0020: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0030: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0040: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0060: FF C0

À.JS1YLUJS1YLT·Ó…§NÐ…ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÀ

0000: C0 00 4A 53 31 59 4C 55 4A 53 31 59 4C 54 B7 D3
0010: 00 00 A6 4E D0 00 02 FF FF FF FF FF FF FF FF FF
0020: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0030: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0040: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0060: FF C0

À.JS1YLUJS1YLT·Ó…¦NÐ…ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÀ

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New TLE set by @PE0SAT:

CLARK SAT-1
1 98961U          23353.24467593  .00000000  00000-0  32438-3 0    05
2 98961  51.6406 132.0227 0001313  68.5072 340.3166 15.51137757    05
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Two new TLE sets from space-track for the deployed satellites:

0 TBA - TO BE ASSIGNED
1 58612U 98067WD  23353.44777387  .00052712  00000-0  88141-3 0  9997
2 58612  51.6397 130.8806 0002886 319.5820 145.1128 15.51372557   242
0 TBA - TO BE ASSIGNED
1 58613U 98067WE  23353.44724344  .00043018  00000-0  72629-3 0  9996
2 58613  51.6358 130.8840 0004895 355.7748 105.0601 15.51184337   216

As PA0DLO notice in this tweet https://twitter.com/HAMSATNL/status/1737451855645450594 58613 is the one that fits for CLARK SAT-1. However we will wait for TLE sets to be assigned before identification, until then we will follow 58613 TLE set in Network and DB.

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TLE are assigned now, no changes, CLARK SAT-1 is identified as 58613.

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