I am not an expert! I have tried to make this document as accurate as possible but there may still be inaccuracies, I have cited sources where possible. If you think I have made an error please open an issue on the github repo with what I have done wrong
Satellites:
Meteor-M N2-3
Meteor-M N2-3:
Downlinks:
LRPT (Low Rate Picture Transmission)
Frequency
Modulation
SymbolRate
Status
137.900MHz
OQPSK
72.000K
On
Notes:
Current data:
MSU-MR channels 1, 2, 4
Instruments:
MSU-MR (VIS/IR Imaging Radiometer)
Status
Ok
Channels light wavelenghts:
Channel 1 Visible Green-Red (0.50 - 0.70 µm)
Channel 2 Near IR (0.70 - 1.10 µm)
Channel 3 Near IR (1.60 - 1.80 µm)
Channel 4 Mid IR (3.50 - 4.10 µm)
Channel 5 Far IR (10.5 - 11.5 µm)
Channel 6 Far IR (11.5 - 12.5 µm)
Channel 1 Far IR (14.95 µm)
Channel 2 Far IR (14.71 µm)
Channel 3 Far IR (14.49 µm)
Channel 4 Far IR (14.22 µm)
Channel 5 Far IR (13.97 µm)
Channel 6 Far IR (13.64 µm)
Channel 7 Far IR (13.35 µm)
Channel 8 Far IR (12.47 µm)
Channel 9 Far IR (11.11 µm)
Channel 10 Far IR (9.71 µm)
Channel 11 Far IR (7.33 µm)
Channel 12 Far IR (6.52 µm)
Channel 13 Mid IR (4.57 µm)
Channel 14 Mid IR (4.52 µm)
Channel 15 Mid IR (4.47 µm)
Channel 16 Mid IR (4.45 µm)
Channel 17 Mid IR (4.13 µm)
Channel 18 Mid IR (4.00 µm)
Channel 19 Mid IR (3.76 µm)
Channel 20 Visible Red (0.69 µm)
Channel 1 Far IR (14.95 µm)
Channel 2 Far IR (14.71 µm)
Channel 3 Far IR (14.49 µm)
Channel 4 Far IR (14.22 µm)
Channel 5 Far IR (13.97 µm)
Channel 6 Far IR (13.64 µm)
Channel 7 Far IR (13.35 µm)
Channel 8 Far IR (12.47 µm)
Channel 9 Far IR (11.11 µm)
Channel 10 Far IR (9.71 µm)
Channel 11 Far IR (7.33 µm)
Channel 12 Far IR (6.52 µm)
Channel 13 Mid IR (4.57 µm)
Channel 14 Mid IR (4.52 µm)
Channel 15 Mid IR (4.47 µm)
Channel 16 Mid IR (4.45 µm)
Channel 17 Mid IR (4.13 µm)
Channel 18 Mid IR (4.00 µm)
Channel 19 Mid IR (3.76 µm)
Channel 20 Visible Red (0.69 µm)
NOAA 18 is the only POES satellites that uses AVHRR channel 1 (visible) on APT
The DSB on NOAA 18 sometimes temporarly switches off, I'm not sure why this happens
Log:
2023-08-28
NOAA seems to be doing something with the APT channels, they switched seem to have AVHRR channel 1 (visible) at night causing a black image
Channel 1 Far IR (14.95 µm)
Channel 2 Far IR (14.71 µm)
Channel 3 Far IR (14.49 µm)
Channel 4 Far IR (14.22 µm)
Channel 5 Far IR (13.97 µm)
Channel 6 Far IR (13.64 µm)
Channel 7 Far IR (13.35 µm)
Channel 8 Far IR (12.47 µm)
Channel 9 Far IR (11.11 µm)
Channel 10 Far IR (9.71 µm)
Channel 11 Far IR (7.33 µm)
Channel 12 Far IR (6.52 µm)
Channel 13 Mid IR (4.57 µm)
Channel 14 Mid IR (4.52 µm)
Channel 15 Mid IR (4.47 µm)
Channel 16 Mid IR (4.45 µm)
Channel 17 Mid IR (4.13 µm)
Channel 18 Mid IR (4.00 µm)
Channel 19 Mid IR (3.76 µm)
Channel 20 Visible Red (0.69 µm)
NOAA 15 is the only active POES satellites that has the older HIRS/3 instead of HIRS/4
Log:
2023-08-28
The AVHRR scan motor appears to be stuck, corrupting the main image data. The MIRP (onboard computer) does not seem capable of using this data and makes an unsyncable APT signal
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