Friday, 11 September 2020

Important update of my SkyTrack software [UPDATED]

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  In the context of the probable landing site of the recent Chinese Experimental Spacecraft (see previous post ), I discovered a serious bug...
2 comments:
Saturday, 5 September 2020

China launches a 'Reusable Experimental Spacecraft' - a Space Plane? [UPDATED MULTIPLE TIMES]

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Early September 2020, the space tracking community was in nervous anticipation of a rather mysterious Chinese launch. Amidst tight security ...
Thursday, 6 August 2020

15 years of the SatTrackCam (b)log!!!

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I hardly can't believe it: but today, this blog turns 15 years! It all started very humble. The very first post on this blog, titled ...
10 comments:
Wednesday, 5 August 2020

NROL-129 payloads located on-orbit

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click image to enlarge On July 15, 2020, at 13:46 UT , the NRO launched NROL-129 from the Mid-Atlantic Regional Spaceport at Wallops, usin...
4 comments:
Sunday, 12 July 2020

OT: Comet C/2020 F3 NEOWISE

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click to enlarge The image above shows comet C/2020 F3 NEOWISE , which is currently visible low on the northern horizon after sunset and...
2 comments:
Saturday, 4 July 2020

ISS Debris Avoidance Manoeuvre of 3 July 2020

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click to enlarge ROSCOSMOS has announced that the International Space Station (ISS) had to make an unscheduled orbit adjustment (a d...
1 comment:
Saturday, 13 June 2020

A French M51 SLBM test with a 6000 km range on June 12

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click image to enlarge On the morning of June 12 , 2020, the French Navy test launched an unarmed M51 SLBM from the Triomphant -class ...
Thursday, 11 June 2020

SkyTrack: a simple tool to calculate satellite positions and visuallize satellite trajectories in Google Earth

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Over the past years I have written a number of simple software tools to ease some of my data analysis. Some of these I have released in...
7 comments:
Wednesday, 3 June 2020

Introducing a new web resource: Launchtower

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Before new launches, I frequently publish orbital element ( TLE ) estimates that can help satellite observers plan observations of the paylo...
1 comment:
Sunday, 31 May 2020

Imaging a pass of the Crew Dragon Demo-2, and a close fly-by of the Crew Dragon by USA 245! [UPDATED]

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click photograph to enlarge Yesterday May 30 at 19:22 UT finally saw the launch of the SpaceX Crew Dragon Demo-2 with astronauts Hurle...
1 comment:
Saturday, 30 May 2020

New attempt to launch the Crew Dragon on May 30: trajectory

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screenshot from the May 27 live webcast In an earlier pos t I discussed the SpaceX Crew Dragon Demo-2 launch. Originally slated for 2...
7 comments: