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 Post
Sources:
6 Likes
PE0SAT
June 27, 2025, 7:44pm
2
Thanks for this information, I have also started to created gr-satellite yaml files
Jan | PE0SAT.
5 Likes
Update from SamSat satellite team:SamSat-Orion will be launched in October 2025
3 Likes
K4KDR
July 23, 2025, 2:29am
4
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:
… and if you inspect the I/Q in Inspectrum, the footprint of a LoRa packet is obvious:
… and even if you simply demod the signal as FM, that LoRa footprint is quite clear given a decent SNR:
… 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.
8 Likes
K4KDR
July 25, 2025, 3:42am
6
Don’t know that I’ll still be up to watch it, but a URL for the launch livestream:
2 Likes
fredy
July 25, 2025, 5:18am
8
Everything ready for the launch, here are scheduled observations for the first 48 hours:
Temporary NORAD ID
Satellite
Scheduled Observations
98556
Geoscan-4
146
98560
239Alferov
377
98557
Geoscan-3
114
98559
Geoscan-1
111
98554
Geoscan-6
110
98553
InnoSat3
112
98552
InnoSat16
113
98558
Geoscan-2
111
98555
Geoscan-5
110
-
Total
1304
4 Likes
K4KDR
July 25, 2025, 8:26am
9
I’m just realizing that there are no frequencies listed for the CSTP 4.x satellites in this thread nor anywhere that I can find online.
So, even though we don’t know if these 4 will have the 62.5k bandwidth packets that the other CSTP’s use, if anyone spots extra-wide packets while these objects are passing over, please share the freq (and an I/Q if possible).
Thanks!
1 Like
fredy
July 25, 2025, 10:25am
10
Until now there are some signals for Geoscan-3, Geoscan-4 and InnoSat16, but we will need more observations to verify them.
2 Likes
K4KDR
July 25, 2025, 10:32am
11
Well, sometimes even doing stupid things can be useful. It was only a 20° pass, but there’s always a chance. Sure enough, on the 0934utc pass over the U.S., I spotted some wide signals between 436 MHz & 438 Mhz.
… On closer inspection, the higher freq. packets were inverted 500k LoRa and the lower freq. packets were non-inverted 125k.
So, when it’s not the middle of the night here I’ll calculate the parameters and be ready to hopefully see them again on a much higher pass here later today.
Of course in that much spectrum, they could easily be from other objects (not on this deployment). Sure would be nice if there is some ASCII in the decoded frames; should know more later today!
2 Likes
Two way communication established with Innosat3, Geoscan-3,-4,-5 on the first pass.
3 Likes
EU1SAT
July 25, 2025, 10:56am
13
239ALFEROV and GEOSCAN-3 Active and Demodulated
3 Likes
Two-way communication established with 239Alferov, Geoscan-1,-2,-3,-4,-5,-6, Innosat3, Innosat16!
6 Likes
N6RFM
July 25, 2025, 2:08pm
15
9K6 Geoscan frame RX. From wide band IQ replay centered on 436.160 MHz (was looking for GEOSCAN-2). Based on frequency offset of signal (-224.7KHz), appears to be GEOSCAN-1.
Good hunting all,
2 Likes
This one is gnss frame. Decoder is available with satnogs-decoders. (Geoscan.Ksy)
2 Likes
First image from INNOSAT16 received by MCC.
6 Likes
PE0SAT
July 25, 2025, 3:08pm
18
All satellites seen in my STRF obs, congratulation to the teams, well done!
4 Likes
dl7ndr
July 25, 2025, 4:57pm
19
RS61S (239Alferov) : 3 Beacons decoded at 13:56 UTC unattended.
84 8A 82 86 9E 9C 60 A4 A6 6C 62 A6 00 E1 03 F0 01 EB 8E 6D 38 02 05 9E 00 0B 02 BF 0F 72 1F 06 00 00 00 58 00 00 00 00 21 00 F5 0A 07 07 09 00 00 00 00 FF 00 00 00 00 0D C9 1F 80 00 A1 97 47 08 D7 01 00 F7 00 00 00
84 8A 82 86 9E 9C 60 A4 A6 6C 62 A6 00 E1 03 F0 01 EB 8E 6D 38 02 05 9E 00 0B 02 BF 0F 72 1F 06 00 00 00 58 00 00 00 00 21 00 F4 0D 07 07 07 00 00 00 00 FF 00 00 00 00 0D A1 1F 80 00 A1 97 47 08 D9 01 00 FA 00 00 00
09 98 46 05 BD 42 30 46 8A A9 E5 01 00 00 F6 7C 2F 4D BF A1 E9 CB F9 DC AB CB AB D9 6D 47 7F 1E 1A C6 A0 BD AF C5 00 00 C0 FF 00 00 C0 7F 00 00 C0 7F 00 00 C0 FF 00 00 8A 06 05 26 13 BC 00 00 00 00 00 00 00 00 00 00
4 Likes
PE0SAT
July 25, 2025, 5:11pm
20
After IQ replay, two GEOSCAN-2 frames.
More gr-satellite yml files can be found at this location .
gr_satellites GEOSCAN-2.yml --rawint16 iq_12034682_57600.wav --samp_rate 57600 --iq
-> Packet from 9k6 FSK downlink
Container:
header = Container:
addresses = ListContainer:
Container:
callsign = u'\x06L#\x02^!' (total 6)
ssid = Container:
ch = False
ssid = 8
extension = False
Container:
callsign = u'\x02xTr\x00\x00' (total 6)
ssid = Container:
ch = False
ssid = 0
extension = False
Container:
callsign = u'm%[f' (total 4)
ssid = Container:
ch = True
ssid = 8
extension = True
control = 0x4C
pid = 0x90
info = b"\x17\x1dL\x07\xf3\x97\xc5\xb4\x98\xdbE\x0b'\xf6D\xf5)v\xbf]\x85\x85>\xfbvT=\xdb\xf3\x8b\xbd\x00\x00\xe8\x00\xf7\x81<:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" (total 49)
-> Packet from 9k6 FSK downlink
Container:
header = Container:
addresses = ListContainer:
Container:
callsign = u'BEACON' (total 6)
ssid = Container:
ch = False
ssid = 0
extension = False
Container:
callsign = u'RS92S2' (total 6)
ssid = Container:
ch = True
ssid = 0
extension = True
control = 0x03
pid = 0xF0
info = b'\x01\xd6\xa3m8\x02\x05c\x00\x08\x01\xe5\x0f\xc4\x1f\x06\x00\x04\x05f\x00\x00\x00\x00)\x00\xd4\x17\x80\t\x15\x00\x00\x00\x00\xff\x00\x00\x00\x00\r\x18 \x81\x00\x9d\x9c\x15\t@\x01\x00\xfd\x00\x00\x00' (total 56)
2 Likes
Good luck to all!
