Author | Lightnews

Fred Jansen

@redplanet00.bsky.social

210 followers 64 following 110 posts

PhD-astrophysics. Was XMM-Newton and Gaia (2006) project scientist (PS) . Was XMM, MEX , VEX, Rosetta, Gaia Mission manager (11,10,7,2,5 yr). ESA (retired).

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Fred Jansen @redplanet00.bsky.social · 4d

You don’t need to know a lot of Spanish to see this article, with inputs from my ESA Rosetta colleague Michael Kueppers, is going the right way !

Fred Jansen @redplanet00.bsky.social · 5d

How can we stop the 3I/Atlas rubbish …..

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Fred Jansen @redplanet00.bsky.social · 5d

🤣

Fred Jansen @redplanet00.bsky.social · 5d

Very true and very sad …

Fred Jansen @redplanet00.bsky.social · 5d

Maar wel water koken in stijl #LeCreuset

Fred Jansen @redplanet00.bsky.social · 23d

Spent today X-band tracking "Le quattro stagioni" of FengYun weather satellites: 3D, 3E, 3F and 3H (and 3G) - data processing is a lot of work, so images later. First this solar FY3E XEUVI image with some nice solar flares and plasma arcs (and a cosmic ray hitting the detector)

Fred Jansen @redplanet00.bsky.social · 28d

Mars Express is a tough little animal with a wonderful team behind it keeping it alive :-) And they keep doing new things as well, like the mutual radio science measurements with ExoMars through the atmosphere.

Fred Jansen @redplanet00.bsky.social · Oct 1

Amazing 🙃

Fred Jansen @redplanet00.bsky.social · Oct 1

Congratulations!

Fred Jansen @redplanet00.bsky.social · Oct 1

Lots of condensation trails can be seen on this Netherlands crop from a FY3F pass @ 10:55 UTC - but if these semi circles near the middle are condensation trails, what was that pilot doing ??

Fred Jansen @redplanet00.bsky.social · Oct 1

A false colour crop of the Iberian peninsula from a Fengyun 3F pass @ 10:55 UTC. Absolutely shocking to see how big the burnt areas from the recent wildfires are !

False colour weather satellite image of the Iberian peninsula illustrating how incredibly big the burnt areas from the recent wildfires are.

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Fred Jansen @redplanet00.bsky.social · Sep 14

Enjoy !!

Fred Jansen @redplanet00.bsky.social · Sep 13

What amazes me most is this frequency “wobbling” you see (skewed bright lines in the waterfall). Here the recently launched METOP-SGA1 - I mostly see this on W passes.

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Fred Jansen @redplanet00.bsky.social · Aug 31

I was at the ISAS lodge in Sagamihara Feb 1990 but arrived at 2am (Alaska volcano necessitated a Vancouver detour) but the guard wouldn’t let me in. With great difficulty I convinced him to call prof Tanaka (who spoke fluent Dutch) and finally got me in after having been awake for some 30 hours…

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Fred Jansen @redplanet00.bsky.social · Aug 13

From a FY3F pass @ 09:46 UTC today, a Colour Infra Red (CIR) crop centered on Greece. A vast amount of bush fires can be seen, including what looks like a big one on the Island of Chios.