SWSU & Tsiolkovsky-Ryazan cubesats deployed from the ISS 21-July-2022

Satellites & Observations Launches
1

Here are the details from R4UAB’s website ref. the 10 cubesats hand-deployed from the ISS today:

SWSU-55 #1 & R-390 (SWSU #5)
Callsign: RS10S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.050 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 2 (SWGU No. 6)
Callsign: RS11S
Telemetry: 437.050MHz 1200 bps .AX25 AFSK;
Payload: 437.062 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 3 (SWGU No. 7)
Callsign: RS1S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.075 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 4 (SWGU No. 8)
Callsign: RS2S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.082 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 5 (SWGU No. 9)
Callsign: RS3S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.100 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 6 (SWGU No. 10)
Callsign: RS4S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.087 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 №7 & R-390 (SWGU №11)
Callsign: RS5S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.1125 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 8 (SWGU No. 12)
Callsign: RS6S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.000 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

Tsiolkovsky-Ryazan 1
Callsign: RS9S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.025 MHz 1200 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

Tsiolkovsky-Ryazan 2
Callsign: RS12S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.0125 MHz 1200 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

3 Likes
2

Unfortunately until Monday I can not add them in DB, however if anyone wants to observe them, please suggest them in DB (as logged in user in satellites page at the top right, for norad id leave it blank and for norad to follow use 25544) and I’ll review them as soon as possible.

3

image
image1113×1048 572 KB

I took a look with STRF, and it looks like almost all satellites are there. Only at 437.062 MHz of SWSU-55 No. 2 (SWGU No. 6) it looks like no signal. The wide band signals could be the SSTV. The satellites have just been deployed and are all very close to the ISS.

2 Likes
4

sstv3
sstv31893×899 186 KB

sstv2
sstv21875×910 215 KB

sstv1
sstv11860×918 223 KB

I decoded these and other photos. Ax25 failed.

4 Likes
5

Are these frequency coordinated with the IARU?
That seems like a rather large chunk of spectrum to take up.

6

With many sites around the world reporting strong signals from these satellites, very few of the AX.25 packets were decoded. Many stations worked on trying to understand why and with input from multiple skilled operators around the world, we can now get reliable decodes using a non-standard AFSK baud rate (1145) and mark-space tones (1109/2230). Some or all of these parameters may have room for improvement, so if anyone has better luck with some other combination, I’m sure everyone would love to know! -Scott, K4KDR

1 Like
7

The SWSU sats continued to look good on the 0513utc pass over the Eastern U.S. The AFSK telem beacons from multiple satellites all decoded just fine w/ the 1145 baud settings.

By chance can anyone translate whatever language the long section of recorded audio is included with the digital voice ID’s here →

… and here is tonight’s tweet w/ images of the waterfall & SSTV pictures decoded on replay →

1 Like
8

Hi Mark,
In a word NO…the IARU Coordination Panel did not receive any frequency coordination request. 73 Graham G3VZV

4 Likes
9

If I remember correctly, in the past, the IARU never received any request for a Russian amateur radio satellite. Why would they do it now?

10

I see a tweet from EU1SAT ref. uploading telemetry from one of the SWSU sats to the SatNogs-DB.

Are there temporary ID #'s for these objects now?

11

https://db.satnogs.org/search/?q=yuzgu

1 Like
12

Thanks very much for the SatNogs-DB temp ID info.

If I matched everything up correctly, then here is an updated list of those objects:

-------------------------------------------------------------------------------
SatNogs: 99372
SWSU-55 #1 & R-390 (SWSU No. 5)
Callsign: RS10S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.050 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99376
SWSU-55 No. 2 (SWGU No. 6)
Callsign: RS11S
Telemetry: 437.050MHz 1200 bps .AX25 AFSK;
Payload: 437.062 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99375
SWSU-55 No. 3 (SWGU No. 7)
Callsign: RS1S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.075 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99374
SWSU-55 No. 4 (SWGU No. 8)
Callsign: RS2S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.082 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99373
SWSU-55 No. 5 (SWGU No. 9)
Callsign: RS3S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.100 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99377
SWSU-55 No. 6 (SWGU No. 10)
Callsign: RS4S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.087 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99371
SWSU-55 №7 & R-390 (SWGU No. 11)
Callsign: RS5S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.1125 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99370
SWSU-55 No. 8 (SWGU No. 12)
Callsign: RS6S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.000 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99378
Tsiolkovsky-Ryazan 1
Callsign: RS9S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.025 MHz 1200 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------
SatNogs: 99379
Tsiolkovsky-Ryazan 2
Callsign: RS12S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.0125 MHz 1200 bps .AX25 AFSK, SSTV, AUDIO, TEXT;
-------------------------------------------------------------------------------

3 Likes
13

… so maybe these should be marked as such in the DB? Thoughts?