2024-12-09 07:45 UTC, 10:50 UTC and 14:00 UTC: ISS Cubesat Deployment (JAXA) J-SSOD#30 - [YODAKA, DENDEN-01, LignoSat, YOMOGI, ONGLAISAT]

fredy · December 6, 2024, 5:32pm

Latest Update 2024-12-09 07:55 UTC

Temporary NORAD ID	Satellite	Frequency	Notes	Deployed
AMATEUR VHF
98736	YOMOGI	145.825 MHz	APRS Digipeater IARU Coordinated	Kibo ISS (JAXA)
AMATEUR UHF
98738	LignoSat	435.820 MHz	IARU Coordinated	Kibo ISS (JAXA)
98736	YOMOGI	437.375 MHz	IARU Coordinated	Kibo ISS (JAXA)
OTHER FREQUENCIES (UHF, L-Band, S-Band)
98735	YODAKA	922.000 MHz	frequency from ITU entry	Kibo ISS (JAXA)
98734	DENDEN-01	922.000 MHz	frequency from ITU entry	Kibo ISS (JAXA)
98733	ONGLAISAT	922.000 MHz	frequency from ITU entry	Kibo ISS (JAXA)
98735	YODAKA	2277.300 MHz	frequency from ITU entry	Kibo ISS (JAXA)
98734	DENDEN-01	2277.300 MHz	frequency from ITU entry	Kibo ISS (JAXA)
98733	ONGLAISAT	2277.300 MHz	frequency from ITU entry	Kibo ISS (JAXA)
OTHER FREQUENCIES (X-Band)
98735	YODAKA	8160.000 MHz	frequency from ITU entry	Kibo ISS (JAXA)
98733	ONGLAISAT	8160.000 MHz	frequency from ITU entry	Kibo ISS (JAXA)

Latest Update 2024-12-09 07:55 UTC

JAXA announcement:

The deployment event for those satellites by J-SSOD#30 will be broadcast via YouTube JAXA Channel.

December 9, 2024 （Monday）

The date and time of the deployment are subject to change due to the ISS schedule modification.

1st Deployment 16:45 – 17:15 (JST) (Satellite : YODAKA) YOUTUBE

2nd Deployment 19:50 – 20:30 (JST) (Satellite : DENDEN-01, LignoSat, YOMOGI) YOUTUBE

3rd Deployment 23:00 – 23:30 (JST) (Satellite : ONGLAISAT) YOUTUBE

PS More details about the satellites and their frequencies will be added in the next days

fredy · December 9, 2024, 7:57am

I’ve updated the first post with the necessary frequency info for the satellites.

I’m going to schedule observations for LignoSat and YOMOGI for the first 24h, I’m not going further in time as the initial TLE will be those of ISS during the deployment and we will need soon to update them.

To station owners, If you are going to schedule passes, please make sure you are going to leave some passes for ISS, as the satellites will share similar orbit with ISS for the first days.

Edit: APRS digipeater of YOMOGI will be inactive during the first orbits, if you schedule it you may only receive APRS messages from ISS.

fredy · December 9, 2024, 12:12pm

It looks like YOMOGI CW signal is received in SatNOGS Network - Observation 10736922 around 300s and 400s.

EU1SAT · December 9, 2024, 12:42pm

YOMOGI CW Beacon

EU1SAT · December 9, 2024, 12:59pm

IQ WAV

yo4dft · December 9, 2024, 2:44pm

It wasnt the proper pass for the direction of my antenna, but it seems I received the signal.
https://network.satnogs.org/observations/10738781/
YO4DFT -Cristian

N6RFM · December 9, 2024, 5:56pm

YOMOGI CW N6RFM/5 EM12 2024-12-09T15:40:41Z

yomogi js1ymx si7f7b 9df7e0025D

I was QRV for a low ISS pass. The interval between TX was ~ 1 min. Mostly something like - yomogi js1ymx si7f7b. However it appeared that the telemetry info at the end was not sent every time. yomogi js1ymx si7f7b 9df7e0025D. The “D” may be incorrect. Need better passes to verify.

Good hunting all.
Bob
N6RFM

HS318 · December 9, 2024, 6:29pm

This is a good observation from - Ricardo EA3GKP
https://network.satnogs.org/observations/10736590/

fredy · December 10, 2024, 10:19am

TLE update for YOMOGI and LignoSat(based on YOMOGI TLE), sets are not fully accurate but better than the initial from ISS:

YOMOGI
1 98736U          24345.40000000  .00000000  00000-0  34741-3 0    00
2 98736  51.6375 162.4936 0008367 294.8288 347.2202 15.51348604    05
LignoSat
1 98738U          24345.40000000  .00000000  00000-0  34741-3 0    02
2 98738  51.6375 162.4936 0008367 294.8288 347.2202 15.51348604    07

yomogi_345_v1.dat (1.8 KB)
sites.txt (9.8 KB)

deckbsd · December 10, 2024, 12:15pm

Nice TLE update

Good YOMOGI observation over Belgium :

2024-12-10 11:51:16 UTC

yomogi js1ymx si7bbe 10F7E0885C

fredy · December 13, 2024, 7:51am

We have TLE sets from space-track.org, still in TBA (To Be Assigned) status:

0 TBA - TO BE ASSIGNED
1 62295U 98067XB  24347.66850216  .00099641  00000-0  16295-2 0  9992
2 62295  51.6360 151.0994 0010083 328.5836  31.4551 15.51664672   533
0 TBA - TO BE ASSIGNED
1 62296U 98067XC  24347.66830773  .00071724  00000-0  11781-2 0  9996
2 62296  51.6361 151.0985 0010634 322.1103  37.9137 15.51684922   513
0 TBA - TO BE ASSIGNED
1 62297U 98067XD  24347.66833339  .00084920  00000-0  13907-2 0  9992
2 62297  51.6363 151.0986 0010681 322.0879  37.9358 15.51693335   511
0 TBA - TO BE ASSIGNED
1 62298U 98067XE  24347.66836448  .00072976  00000-0  11994-2 0  9999
2 62298  51.6362 151.0990 0010547 322.5881  37.4374 15.51661144   511
0 TBA - TO BE ASSIGNED
1 62299U 98067XF  24347.66889013  .00084617  00000-0  13985-2 0  9993
2 62299  51.6366 151.1023 0009152 321.6204  38.4133 15.51454837   493

fredy · December 13, 2024, 8:21am

A status update:

Temporary NORAD ID	Satellite	NORAD ID to follow	Other NORAD IDs	Identified	Deployed	Reception	Last Update
RECEIVED
98736	YOMOGI	62298	62297,62296	NO	YES	Received	Received, changed to follow 62298, other possible 62297,62296
NOT RECEIVED/UNKNOWN STATUS
98738	LignoSat	62296	all non-identified	NO	YES	Not Received	Randomly selected to follow 62296, other possible all non-identified
98735	YODAKA	62295	all non-identified	NO	YES	Unknown	Randomly selected to follow 62295, other possible all non-identified
98734	DENDEN-01	62297	all non-identified	NO	YES	Unknown	Randomly selected to follow 62297, other possible all non-identified
98733	ONGLAISAT	62299	all non-identified	NO	YES	Unknown	Randomly selected to follow 62299, other possible all non-identified

deckbsd · December 13, 2024, 11:58am

For YOMOGI based on my observation here

62298 (followed one) better alignment :

62297 off :

62296 off :

62295 completely off :

62299 out of the scope, no way to align it.

deckbsd · December 15, 2024, 4:37pm

New TLEs from Space-track :

0 TBA - TO BE ASSIGNED
1 62295U 98067XB 24350.11544937 .00132324 00000-0 21106-2 0 9999
2 62295 51.6359 138.9411 0010588 339.0703 20.9852 15.52209185 913
0 TBA - TO BE ASSIGNED
1 62296U 98067XC 24350.43727482 .00093526 00000-0 15049-2 0 9992
2 62296 51.6361 137.3406 0011123 333.6792 26.3632 15.52134871 946
0 TBA - TO BE ASSIGNED
1 62297U 98067XD 24350.43717079 .00121322 00000-0 19332-2 0 9999
2 62297 51.6362 137.3401 0011306 333.9418 26.1002 15.52275496 942
0 TBA - TO BE ASSIGNED
1 62298U 98067XE 24350.43737039 .00093542 00000-0 15063-2 0 9997
2 62298 51.6359 137.3413 0011022 334.1863 25.8575 15.52114962 945
0 TBA - TO BE ASSIGNED
1 62299U 98067XF 24350.11622597 .00126589 00000-0 20411-2 0 9996
2 62299 51.6366 138.9465 0009531 332.4811 27.5673 15.51943607 879

deckbsd · December 15, 2024, 5:06pm

YOMOGI using the new TLE and this observation from today :

**62298 ** still a good candidate:

62295 Still a good candidate:

62296 off :

62297 off :

62299 off :

deckbsd · December 18, 2024, 12:39pm

New TLEs from Space-track :

0 TBA - TO BE ASSIGNED
1 62295U 98067XB 24353.07619197 .00141499 00000-0 21860-2 0 9998
2 62295 51.6367 124.2141 0011446 351.2870 8.7920 15.53046891 1370
0 TBA - TO BE ASSIGNED
1 62296U 98067XC 24352.88355667 .00093202 00000-0 14757-2 0 9991
2 62296 51.6369 125.1778 0011499 343.7978 16.2643 15.52580139 1320
0 TBA - TO BE ASSIGNED
1 62297U 98067XD 24353.07620560 .00124803 00000-0 19435-2 0 9991
2 62297 51.6369 124.2148 0011858 345.0122 15.0515 15.52890852 1351
0 TBA - TO BE ASSIGNED
1 62298U 98067XE 24352.81931341 .00092564 00000-0 14674-2 0 9993
2 62298 51.6369 125.4985 0011399 344.0910 15.9721 15.52550563 1314
0 TBA - TO BE ASSIGNED
1 62299U 98067XF 24352.94890036 .00124304 00000-0 19558-2 0 9997
2 62299 51.6375 124.8645 0010123 344.9612 15.1075 15.52628115 1313

deckbsd · December 18, 2024, 1:07pm

YOMOGI using the new TLE and this observation from today :

62298 the only good one left :

62295 off :

62296 off :

62297 off :

62299 off :

Since TLE for 62298 is the only good one left @fredy can we make the assumption that 62298 is YOMOGI ?

fredy · December 18, 2024, 1:21pm

Yes, you have identified it! I’ll perform the change in DB and Network in the next hour.

EDIT: Identification done in Network and DB