Scott Tilley

The Wesley Ridge fire on Vancouver Island and the Bear Gulch Fire in Olympic Peninsula are clearly visible from space via NOAA 15 in 3.75µm IR and 124 false colour images.

The animation shows the fire and the smoke clearly.

YouTube video by Hitler Rants Parodies Hitler is informed Ozzy Osbourne has died

The most honest farewell to Ozzy yet.
www.youtube.com/watch?v=HR8P...

NOAA 15, NOAA 19, METOP-C and METEOR-M2-3 images of the Madre Fire north west of the Los Angeles.

NOAA 15 is a 3a21 image (red pixels) and the others at 3.75µm IR to detect the flames.

NOAA 15 uncorrected west coast wide view from this evening.

METOP-B (04:34UTC) and NOAA (04:51UTC) 3.75µm IR passes of the Madre Fire in southern California. The flames are very visible.

You can also use the 'Night Microphysics' analysis to see night time fires well.

NOAA 15 catches a sliver of the west coast of North America.

Uncorrected 3a21 to give you a sense that just above the image would be the edge of the Earth... Long shadows of sunset give you a sense of perspective.

The Madre Fire northwest of Los Angeles is very visible on NOAA 15 3a21. This fire has rapidly appeared and flared up dramatically.

The flames are visible from space as the dark red pixels with a resolution of ~1.1km/pixel.

Read more: www.fire.ca.gov/incidents/20...

Looks like a lot of thermal weather in the interior of the continent tonight. NOAA 15 3a21 image. Blue is indicative of ice in glaciers and ice crystals in high level cloud. Lightning is being produced in most of the bluest areas.

Are you ready?

AI saying how it is?

That will require a sweep of C and Ka band. My bet it no. As western comm satellites in that vintage uses 'tube' microwave amps. And this do fail well before solid-state devices. The curve for long-lived zombie to nothing is solid state. NATO vs. USSR tech....

Mid-afternoon true colour from FENGYUN 3D of home.

YouTube video by saveitforparts These Satellites Were Reported Dead, But Came Back To Life!

Gabe over on the Save It For Parts channel on YouTube recreated the reception of the NOAA calibration data in his latest episode on Zombie Satellites...
🛑
www.youtube.com/watch?v=FOZG...

One of Greg's recordings from the 1970s of NOAA 2 when it still had a functioning radiometer. Many of Greg's early recordings can be found in this wonderful archive maintained by DD1US.⬇️

Archive: www.dd1us.de/spacesounds%...

Greg Roberts ZS1BI, one of my mentors, sent me pictures of his early 70s NOAA reception station. Here you can see the stacked 137MHz antennas and the receiver, recorder and persistent display oscilloscope he used to view and image weather satellite images then. ⬇️

A bit of amateur space history.

I recovered NOAA 2 (ITOS-D) [6235, 1972-082A] on 1997.5MHz in March of 2021. The mission continues to emit on L-band with hints of calibration data and not images.

Did amateurs hear it in the 70s and see images?
🧵⬇️

www.rtl-sdr.com/noaa-2-retur...

Yes. Since at least the early 70s

I do. It's not published as of yet.

Great question. You could ask the same question of the over 50+ satellites I have catalogued that are still emitting long after the mission ended or failed.

Zooming on the area around home from this afternoon's NOAA 21 3a21 false colour image.

Here's a map of the volcanoes in the NOAA 15 shot. There's also ones on the Canadian side of border too.

Flying through the KEYHOLE!

The PELCO/STEP mount can track at up to 12°/s and made easy work of this near 90° pass of FENGYUN 3G.

The Zombie satellite POLAR [23802, 1996-013A] is clearly rotating/thumbing based on the light curve it exhibits. S-band emissions show period rotation in the Doppler. Video is 10x speed of 40ms frames.

NOAA 15's images have more of a 'painted' quality to them then most of the more modern higher resolution systems. Here on the edge of the frame the long shadows of the Cascade volcanoes make for some nice drama at sunset.

CHALLENGE: Makeup the image and name the volcanoes!

I'll stay out of this 😉

All Defense Meteorological Satellite Program (DMSP) data and products are suppose to end not later than June 30, 2025. An hour before the UTC deadline DMSP F18 continues to send live data...

Thanks @jig.bsky.social for the heads up.

Notice: www.ospo.noaa.gov/data/message...

A rare AQUA pass that didn't switch to wide band dump before passing over me in broadcast mode. True colour image.

Let's see if this is a NOAA thing or a DoD thing. www.ospo.noaa.gov/data/message...

A nice pass from FENGYUN 3G in it's ultra-low LEO orbit.

If you have travelled in the Pacific Northwest you'll know about the 'wetside' and 'dryside'.

Here's today's NOAA 20 image of Washington state demonstrating what this in a nice true colour image.

Read more: choosewashingtonstate.com/research-res...