The main image in post was decoded with WXtoIMG as both noaa-apt and SatDump fail to synchronize it correctly.

Unprocessed image from noaa-apt:

Compatibility image link

Waterfall:

Compatibility image link
There you can see some breaks, the noticeable horizontal lines.

Which sounds like so (note: the waterfall shown above isn’t from the same time as audio):

Compatibility audio link

And the bonus, DSB images:

Compatibility image link
Channels 1-20 are left-to-right then bottom.

And also AVHRR scan motor current as of today:

Compatibility image link

  • u/lukmly013 💾 (lemmy.sdf.org)@lemmy.sdf.orgOP
    link
    fedilink
    English
    arrow-up
    2
    ·
    1 year ago

    That is from SatDump, I just put it together in JointPics.
    In this case there wasn’t anything interesting looking, at least with the pre-set composites. But to be honest, I am not sure how to use that properly. Also what’s with the vertical lines with NOAA-15? When I tried NOAA-19 I got OK results

    (Channel 20)

    • Thomas DouwesM
      link
      fedilink
      arrow-up
      2
      ·
      edit-2
      1 year ago

      That’s really strange, I checked my HIRS images from NOAA 15 and I don’t have any vertical lines, was there any nearby interference?
      It only works in day, but ch20, ch20, ch20 + ch8 * 0.1 seems to make a nice natural looking colour composite on HIRS. It’s a bit hard to see because of how low res the HIRS is, but it makes the land green and the oceans a dark blue.
      My HIRS from that pass (low elevation here):

      • u/lukmly013 💾 (lemmy.sdf.org)@lemmy.sdf.orgOP
        link
        fedilink
        English
        arrow-up
        2
        ·
        1 year ago

        Nope. I also had those lines when I tried before, so I thought it’s something with the satellite. Maybe there is some interference. NOAA-19 uses different frequency for DSB. I’ll have to try with NOAA-18 (and hope it doesn’t cut off again), that should be on same frequency as NOAA-15. But I didn’t notice any interference.

        Thanks for that setting. That looks nice.