Fred Jansen
@redplanet00.bsky.social
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).
Reposted by Fred Jansen
#OTD: 12 November 2014, @esa.int's Rosetta Philae lander made history by touching down on the surface of a comet, the first spacecraft ever to do so. The landing was confirmed at 16:03 GMT/17:03 CET 🧪🔭
www.esa.int/Science_Expl...
@cnes.fr @dlr-de.bsky.social @operations.esa.int @science.esa.int
www.esa.int/Science_Expl...
@cnes.fr @dlr-de.bsky.social @operations.esa.int @science.esa.int
November 12, 2025 at 11:19 AM
#OTD: 12 November 2014, @esa.int's Rosetta Philae lander made history by touching down on the surface of a comet, the first spacecraft ever to do so. The landing was confirmed at 16:03 GMT/17:03 CET 🧪🔭
www.esa.int/Science_Expl...
@cnes.fr @dlr-de.bsky.social @operations.esa.int @science.esa.int
www.esa.int/Science_Expl...
@cnes.fr @dlr-de.bsky.social @operations.esa.int @science.esa.int
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)
October 14, 2025 at 7:17 PM
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)
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 ??
October 1, 2025 at 2:18 PM
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 ??
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 !
October 1, 2025 at 1:43 PM
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 !
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.
August 13, 2025 at 1:14 PM
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.
From a X-band pass of FengYun 3D @ 14:33 UTC today a MERSI false colour and true colour UK/Ireland crop.
July 11, 2025 at 3:26 PM
From a X-band pass of FengYun 3D @ 14:33 UTC today a MERSI false colour and true colour UK/Ireland crop.
Infinitely better than the ESA original
July 3, 2025 at 6:12 PM
Infinitely better than the ESA original
From the METEOR-M2 4 KMSS pass this PM, a few European small to mid-sized Isles. 1: Oléron and Ré, 2: Jersey, Guernsey and Alderney (rest under the clouds), 3: Wight, 4: Texel
June 23, 2025 at 7:36 PM
From the METEOR-M2 4 KMSS pass this PM, a few European small to mid-sized Isles. 1: Oléron and Ré, 2: Jersey, Guernsey and Alderney (rest under the clouds), 3: Wight, 4: Texel
Using the great SatDump s/w - from @aang23.satdump.org et al - on the verywip branch I managed to salvage some semi-decent image from a bad METEOR-M2 4 pass (4.7 dB pk S/N) from last Friday, showing the Rhine river in between the Vosges and the Black Forest
June 23, 2025 at 1:24 PM
Using the great SatDump s/w - from @aang23.satdump.org et al - on the verywip branch I managed to salvage some semi-decent image from a bad METEOR-M2 4 pass (4.7 dB pk S/N) from last Friday, showing the Rhine river in between the Vosges and the Black Forest
Reposted by Fred Jansen
Italy from the ISS. Enlarged and levels adjusted by me.
June 22, 2025 at 5:03 PM
Italy from the ISS. Enlarged and levels adjusted by me.
Part of todays received X-band harvest. From ELEKTRO-L 2 a (semi)geo-stationary satellite a view of the Western hemisphere with: top-middle Newfoundland and the St Lawrence river to Quebec city, lower left Cuba. From JPSS-2 W-Europe with London, Paris, Amsterdam and Brussels.
June 16, 2025 at 7:38 PM
Part of todays received X-band harvest. From ELEKTRO-L 2 a (semi)geo-stationary satellite a view of the Western hemisphere with: top-middle Newfoundland and the St Lawrence river to Quebec city, lower left Cuba. From JPSS-2 W-Europe with London, Paris, Amsterdam and Brussels.
Reposted by Fred Jansen
Proba-3 achieves its first ‘artificial total solar eclipse’ in orbit.
The mission can create these eclipses once every 19.6-hour orbit & make them last up to 6 hours.
With such observations scientists will be able to answer long-lasting questions about our star 👉 www.esa.int/Enabling_Sup... 🔭 🧪 ☀️
The mission can create these eclipses once every 19.6-hour orbit & make them last up to 6 hours.
With such observations scientists will be able to answer long-lasting questions about our star 👉 www.esa.int/Enabling_Sup... 🔭 🧪 ☀️
June 16, 2025 at 3:09 PM
Proba-3 achieves its first ‘artificial total solar eclipse’ in orbit.
The mission can create these eclipses once every 19.6-hour orbit & make them last up to 6 hours.
With such observations scientists will be able to answer long-lasting questions about our star 👉 www.esa.int/Enabling_Sup... 🔭 🧪 ☀️
The mission can create these eclipses once every 19.6-hour orbit & make them last up to 6 hours.
With such observations scientists will be able to answer long-lasting questions about our star 👉 www.esa.int/Enabling_Sup... 🔭 🧪 ☀️
Was busy with two space related activities today: 1. Receiving an X-band image from ELEKTRO-L 2 @ 14:30 UTC today (peak S/N 11.0 dB, avg 10.3 dB) and 2. Reviving a 2014 OpenSUSE VirtualBox VM for processing @science.esa.int Mars-Express data; a Nadir channel image of Phobos by the HRSC camera
June 6, 2025 at 7:37 PM
Was busy with two space related activities today: 1. Receiving an X-band image from ELEKTRO-L 2 @ 14:30 UTC today (peak S/N 11.0 dB, avg 10.3 dB) and 2. Reviving a 2014 OpenSUSE VirtualBox VM for processing @science.esa.int Mars-Express data; a Nadir channel image of Phobos by the HRSC camera
From ELEKTRO-L2 @ 17:00 (local) - channel 3.Puerto Rico, Dominican Republic/Haiti, Cuba, Florida and Columbia and Venezuela can be clearly seen.
May 13, 2025 at 7:36 PM
From ELEKTRO-L2 @ 17:00 (local) - channel 3.Puerto Rico, Dominican Republic/Haiti, Cuba, Florida and Columbia and Venezuela can be clearly seen.
Using the verywip branch of the mighty SatDump to align the METEOR-M2 4 KMSS channels of an earlier recorded pass (20250402) - a Colour Infra Red view of the Wadden sea and the Northern part of my country. Excellent job @aang23.satdump.org !
May 6, 2025 at 2:34 PM
Using the verywip branch of the mighty SatDump to align the METEOR-M2 4 KMSS channels of an earlier recorded pass (20250402) - a Colour Infra Red view of the Wadden sea and the Northern part of my country. Excellent job @aang23.satdump.org !
I have been using some French and Dutch coastline scenery to optimise my own CADU reading/geometry correction software using a FY3F pass at 12:22 today and the CADU created from it with the unique SatDump S/W. Still some way to go, but not bad. Dotting the i's crossing the t's.
April 29, 2025 at 7:23 PM
I have been using some French and Dutch coastline scenery to optimise my own CADU reading/geometry correction software using a FY3F pass at 12:22 today and the CADU created from it with the unique SatDump S/W. Still some way to go, but not bad. Dotting the i's crossing the t's.
From FY3F @ 11:31 and FY3D @ 15:12 today - in just under 4 hours there is a vast movement and weather evolution in this area around Southern Italy/Sicily.
April 16, 2025 at 2:44 PM
From FY3F @ 11:31 and FY3D @ 15:12 today - in just under 4 hours there is a vast movement and weather evolution in this area around Southern Italy/Sicily.
Two crops from a difficult Suomi NPP X-band pass @ 13:48 local. Southern Italy and NW Europe. Wild signal variations as usual.
April 15, 2025 at 7:25 PM
Two crops from a difficult Suomi NPP X-band pass @ 13:48 local. Southern Italy and NW Europe. Wild signal variations as usual.
A while back I monitored the ELEKTRO-L 2 carrier 16 hours assuming its power would tell me when image transmission signal is best. Today I followed that recipe and received my first "images" of the season, far from perfect. Also noted in between images a low rate TM signal (BPSK ?)
April 9, 2025 at 6:45 PM
A while back I monitored the ELEKTRO-L 2 carrier 16 hours assuming its power would tell me when image transmission signal is best. Today I followed that recipe and received my first "images" of the season, far from perfect. Also noted in between images a low rate TM signal (BPSK ?)
From the METEOR-M2 4 KMSS pass @ 15:20 yesterday. A crop of the Netherlands and the Northern part of Denmark.
April 3, 2025 at 1:55 PM
From the METEOR-M2 4 KMSS pass @ 15:20 yesterday. A crop of the Netherlands and the Northern part of Denmark.
While visiting @operations.esa.int today for witnessing the Gaia passivation activities (honoured to have been invited) I noted these portraits at the entrance to the press center: Vera Rubin and Katherine Johnson ….. bravo @esa.int
March 27, 2025 at 6:27 PM
While visiting @operations.esa.int today for witnessing the Gaia passivation activities (honoured to have been invited) I noted these portraits at the entrance to the press center: Vera Rubin and Katherine Johnson ….. bravo @esa.int
Crop from a FY3F pass @ 11:06 - Sahara dust blown over the Mediterranean from the Tunisian and Libyan deserts.
March 14, 2025 at 2:49 PM
Crop from a FY3F pass @ 11:06 - Sahara dust blown over the Mediterranean from the Tunisian and Libyan deserts.
True colour crop from the FengYun 3F pass @ 10:38 today. Some of the major European mountain ranges in full glory.
March 5, 2025 at 8:04 PM
True colour crop from the FengYun 3F pass @ 10:38 today. Some of the major European mountain ranges in full glory.
From a FengYun 3E X-band pass at 17:14 today - a fairly cloudless Europe
March 4, 2025 at 11:19 PM
From a FengYun 3E X-band pass at 17:14 today - a fairly cloudless Europe
It must be getting boring, but from further tests today using a FY3F pass at 10:34 local, crop of the Gulf of Bothnia (w. Sea Ice), Norway, Sweden and Finland. The @rfnotmagic (X) SDR @ 122.88 MHz, recorded with @ryzerth (X) SDR++, demodulated and decoded with @aang23.satdump.org et al SatDump
February 28, 2025 at 11:58 PM
It must be getting boring, but from further tests today using a FY3F pass at 10:34 local, crop of the Gulf of Bothnia (w. Sea Ice), Norway, Sweden and Finland. The @rfnotmagic (X) SDR @ 122.88 MHz, recorded with @ryzerth (X) SDR++, demodulated and decoded with @aang23.satdump.org et al SatDump