Soyuz-2.1b/Fregat - Ionosfera-M 3&4 - Vostochny - 25 July 2025 (05:54 UTC)

Satellites & Observations Launches
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Information will be updated

Here are satellites of the launch:

Main mission:

Name Mission Frequencies Temporary NORAD
Ionosfera-M №3 Geophysical monitoring 98562
Ionosfera-M №4 Geophysical monitoring 98561

Payload (18 CubeSats):

Name R-A Callsign IARU Status Downlink frequencies Mode Temporary NORAD
239Alferov RS61S Coordinated 436.270 MHz and 10473.350 MHz GFSK 9k6, DVB-S2/QPSK 98560
Geoscan-1 RS92S1 N/A 435.970 MHz GFSK 9k6 98559
Geoscan-2 RS92S2 N/A 436.160 MHz GFSK 9k6 98558
Geoscan-3 RS92S3 N/A 435.740 MHz GFSK 9k6 98557
Geoscan-4 RS92S4 N/A 435.335 MHz GFSK 9k6 98556
Geoscan-5 RS92S5 N/A 436.660 MHz GFSK 9k6 98555
Geoscan-6 RS92S6 N/A 436.940 MHz GFSK 9k6 98554
InnoSat3 RS92S0 N/A 436.436 MHz GFSK 9k6 98553
InnoSat16 RS92S7 N/A 435.830 MHz GFSK 9k6 98552
CSTP-4.1 N/A N/A UHF LoRa? 98549
CSTP-4.2 N/A N/A UHF LoRa? 98548
CSTP-4.3 N/A N/A UHF LoRa? 98547
CSTP-4.4 N/A N/A UHF LoRa? 98546
AstroLine-1 N/A N/A N/A N/A
AstroLine-2 N/A N/A N/A N/A
AstroLine-3 N/A N/A N/A N/A
AstroLine-4 N/A N/A N/A N/A
Nahid 2 N/A N/A UHF N/A

Preliminary TLE
|TBD|

Sources:

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Thanks for this information, I have also started to created gr-satellite yaml files

Jan | PE0SAT.

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Update from SamSat satellite team:
SamSat-Orion will be launched in October 2025

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Hello!

FYI for anyone scanning a range of spectrum as we often do after a deployment of multiple cubesats, I thought I would share what you’ll see from those CSTP sats (‘if’ they use the same LoRa parameters that all the other CSTP satellites have used to-date).

It’s a 62.5k wide signal that does persist longer than your average quick FSK or BPSK burst:

cstp-1.1_gqrx
cstp-1.1_gqrx1729×774 148 KB

… and if you inspect the I/Q in Inspectrum, the footprint of a LoRa packet is obvious:

cstp-1.1_inspectrum
cstp-1.1_inspectrum1869×533 104 KB

… and even if you simply demod the signal as FM, that LoRa footprint is quite clear given a decent SNR:

cstp-1.1_audacity
cstp-1.1_audacity1771×377 49.6 KB

… so, while looking for other downlinks, if you see something unusually wide, when this deployment is overhead, it could be one of the new CSTP sats.

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