Nice AHRPT from tonight (2025-09-08 20-07 UTC). Even without POES there are a couple AVHRRs still receivable on the MetOp satellites. Live decoded with SatDump, 80cm dish, SDRPlay RSP1A SDR.
Main image is AVHRR 543b.

Lots of instruments of these, so I'll spam a bit
AVHRR 543b Projected

AVHRR Night Microphysics

MHS Microwave Airmass

MHS 221

IASI Imaging NO preset

IASI Clouds

All ASCAT projected

AMSU-A 543

Nice article from lego11 on other satellite reception now APT is gone

Well, there it goes. Today, the 19th of August 2025, NOAA-15 was decommissioned over svalbard. I didn't manage to get the final APT, but this time meti from the satdump discord (and some others) did, and is the picture attached to this post.
Here is a link to their archive website licensed CC-BY-SA-4.0 received by meti.

Earlier, (the svalbard pass before?) the AVHRR patch cooling was disabled, making the IR channels unusable and white on the APT.

With NOAA-18 and NOAA-19 having been decommissioned earlier, as I have made posts about. This is the end of 137MHz APT, but meteor LRPT is still active, and is planned to continue for many years.

Although old, I found APT fun to receive, with it's rhythmic clicking, and analogue images. If anyone is even in this community maybe post your best APT receptions in the comments.

Today, the 13th of August 2025, NOAA-19 was permanently shut down after a battery failure on the 9th. Until the 11th it was still transmitting APT, but on the 12th it only transmitted DSB without HIRS or SEM. On S-band it was also transmitting DSB for a while, then HRPT with only TIP data on night the 13th and this morning.

Since this was unexpected, I didn't get the last APT it was transmitting, or record the shutdown of the satellite, but here is the best APT I have from the day before (the 11th). RIP NOAA-19.

The decommisioning of NOAA-15 was due on the 12th, but was delayed to the week of the 18th on the 11th due to an "anomaly" with NOAA-19.

links:
POES Decommisioning and NOAA-15 delay message
NOAA-19 Decommisioning message

This is very sad news, I'm sure many if not all people got into this hobby through APT, It will be sad to see it go. This will leave the 137MHz band with only Meteor LRPT for weather images going forward.

At about 17:40 UTC today NOAA-18 was permanently shut down. This is the last APT image it was transmitting, you can see where it stops. I recorded this using an openwebrx station because it was too far north for me to receive. Thanks to the openwebrx server for letting me record this event: http://sa2kng.ddns.net:8073/

2 top images are same attempt - with and without auto-slant

Something screwed up. Probably with the audio recording, perhaps it dropped a few samples so QSSTV desynchronized there.

Boring setup:
V-Dipole, RTL-SDR v3, waterproof smartphone (it was snowing, else I'd bring a laptop)

Received using RTL-SDR, the included V-Dipole Antenna, SDR++ for recording and SatDump for decoding. It is among the nicest I have received so far.

I've been diving into the world of amateur satellites, and the idea of building one is absolutely thrilling! However, like any ambitious project, getting started can feel overwhelming. So, I wanted to gather some collective wisdom from this awesome community.

1. Choosing Components: What are the must-have components for a basic satellite? Any recommendations on where to source them without breaking the bank?

2. Learning Resources: What books, online courses, or tutorials have you found invaluable in understanding satellite design and operation?

3. Software and Simulations: Are there any specific software tools or simulation programs you'd suggest for planning and testing satellite systems?

4. Launching: What are the best options for getting a small satellite into orbit for amateurs? Has anyone here collaborated with organizations like SpaceX or Rocket Lab?

5. Success Stories: I'd love to hear about your personal projects! What challenges did you face, and how did you overcome them? Pics and progress updates are always welcome!

Thanks in advance!

RTLv3 + FM Bandstop + Wideband LNA + Dipole Antenna. One of my best captures yet, I think!

Both received and decoded in SatDump on Android.
The 321 composite PNG is 65MB, so I compressed it... and then Imgur compressed it even further so there's some extra compression artifacts, but anyway.

And a note: Look4Sat app seems to have wrong TLE for M No. 2-4. Thankfully there was a similar pass to one shown, just 15 minutes later and more to the west.
TLE on N2YO.com is right.

Edit: Ran the decoder again with baseband. It removed the lines from middle.

Captured from Poland on April 10th at 17:00 UTC, looks like channel A switched to IR mid scan. The satellite is NOAA-15.

It's transmitting on 145.8MHz FM in the 2m HAM band
times (from amsat-uk):
Fri Oct 27 at 12:15 GMT – Sun Oct 29 at 18:50 GMT
Tue Oct 31 at 10:05 GMT – Wed Nov 01 at 18:10 GMT

a couple more:

From 2023-10-12
Projected:

Day Microphysics projected:

Scan motor current is going up again, maybe it will fix?

The telemetry for the NOAA POES satellites is in the TIP data along with the HIRS and SEM data. The content is not known, but the format is.
At least everything on the star nesdis page should be in there, including the AVHRR scan motor current I was looking for.

I wrote a program to dump this telemetry to CSV and found the one column that rose at the same rate as the scan motor should.

It's not a perfect match, NOAA probably multiplies it by some unknown value to find the actual current, and my data is only from when the satellite was overhead, so it's a bit low resolution

official NOAA data:

There are still hundreds of unknown values that I haven't and have no way of figuring out, here is the raw CSV data if anyone is interested: link
It's concatenated from months of data, so it's full of skips, there is a millisecond timestamp on the first column, but it's out a few hours and sometimes corrupted.
Some fields are also super commutated still.

Not another one

Waterfall:
Click to view image directly

Baseband recording (cut with SDRAngel using FileSink)

When modulated, it looks like Orbcomm mobile telephony, but in that case the data bursts happen more often and there's no visible carrier.
I also didn't find anything corresponding in the Happysat's Deadsat list.

What could it be? Zombie Orbcomm satellite or something else?

I wonder what NOAA is doing? They did this on 2023-08-28 too.