the document on below link says the frequency for Grizu 263-A is 435.675 and Bit Rate is 2.4k.
But on satnogs it seems as frequency is 437.190 and bitrate is 4.8k.
Frequency 435.675 MHz
Band Width 12.5 kHz
Bit Rate 2.4 kbps
Modulation Type FSK
Any idea how old is this pdf? The frequency in DB is from the IARU Coordination IARU Sat Coordinator which the team should follow, so I expect this to be the right one.
On a low (26°) elevation pass to my east (0204utc 14-Jan-2022), and then an even lower pass to my west (0341utc 14-Jan-2022), packets were seen consistent w/ Delfi-PQ. 1k2 FSK is difficult to decode under the best conditions, but unfortunately I was not able to do anything with these weak signals.
Does anyone know if Delfi-PQ beacons should transmit on a 1-minute interval? These packets were exactly 1-minute apart, so in addition to the freq. & doppler that would be helpful to keep Delfi-PQ as a possible source for these packets.
We have several recordings in Network too, what worries me is that it seems to not follow too good the TLE sets (the pre-launch ones) and are visible only above US. Let’s keep watching.
It looks like SATLLA-2A and -2B transmit another signal than LoRa too. Needs more investigation.
Also we haven’t demodulated any signal from Tevel-1 yet, maybe it is just a coincidence as all the other, seven, are transmitting in the same frequency and may not give a window to Tevel-1 to transmit.
SatNOGS DB is updated and UNICORN 2TA1 (TartanArtibeus-1) is now with alive status allowing scheduling in Network. All future observations for UNICORNS have been updated to follow the new transmitter updates, by the way this is done automatically with the code landed recently.
Well, only took me an entire day to decode the strongest of those Delfi-PQ packets from the better of my two passes yesterday. But, glad to see that the satellite is alive!
