Observation classification

SatNOGS Software
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I’ve noticed that some of observations are automatically flagged as succedded (e.g. NOAA) while other are not flagged even if the have decoded data associated with them - where can I read more on it? Is automatic classification in planned future works?

Also is data decoding performed for a small subset of satellites? e.g. https://network.satnogs.org/observations/4128611/ here I see some interesting signal was it not decoded because there is no info on how to decode this particular signal or was it too weak?

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As you can see in this observation https://network.satnogs.org/observations/4127124/ there is decode possible but it need enough SNR.

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Ok so should i expect decoded data from every satellite that is in the database - provided it will have enough snr?

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No, the challenge is that satellite builders aren’t always sharing there TX details.
So it is a joined effort, when the details aren’t available to reverse engineer the signals.

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For your first question, in general in Network if an observation has decoded data we have decided to automatically mark it as successful, however this decision comes with some notes to be aware of:

  1. There are cases that decoded data is just noise, in this case we have a false positive which for now is accepted and in some cases can be fixed by vetting the waterfall and tell if the signal exists or not in waterfall.
  2. In order to avoid many false positives we have added some modes as exception to the rule. For example observation of transmitters with CW mode don’t automatically change their status as successful, as CW decoded data are not verifiable (with a crc check or something similar) and are proned to be false positives.
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