SatTrackCam Leiden (b)log

THE SECRET SPIES IN THE SKY - Imagery, Data Analysis, and Discussions relating to Military Space

SatTrackCam Leiden (Cospar 4353) is a satellite tracking station located at Leiden, the Netherlands. The tracking focus is on classified objects - i.e. "spy satellites". With a camera, accurate positional measurements on satellites of interest are obtained in order to determine their orbits. Orbital behaviour is analysed. This blog analyses Missile tests too.

Friday, 31 March 2006

USA 129 too faint this time

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I had clear skies again this evening. The only potentially interesting pass though was that of USA 129 at 20:23 UTC. I did see it visually,...
Wednesday, 29 March 2006

He's back! USA 129 and Solar Eclipse

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Bjorn Gimle recovered the keyhole satellite USA 129 (96-072A, #24680) on the 23rd when it came out of its winter dark period. Following thi...
Wednesday, 22 March 2006

Lacrosse 4 Flare and missing Lacrosse 5

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Conditions were poor this evening: haze due to very thin high altitude clouds lowered the limiting magnitude considerably. Still, some work ...
Tuesday, 21 March 2006

Clear skies, nice Lacrosse 5 pass

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After a few grey days, this monday turned into a very clear day. Bright blue skies in the daytime, good dark sky in th evning. I had only on...
Tuesday, 14 March 2006

Playing hide & seek with Lacrosse 5

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Got a nice bunch of data on Lacrosse 5 (2005-016A, #28646) last evening. I observed two passes (19:08 and 20:50 UTC) , under poor conditions...
Saturday, 11 March 2006

Lacrosse 5 disappearance trick & timing problem gone?

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I observed Lacrosse 5 doing its disappearance trick this evening. I think this explains my non-observation of March 6th in combination with ...
Tuesday, 7 March 2006

Oh, how I love Japanese electronics... (timing error issues)

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Yep, it seems have a ~0.3 second timing devation again against other stations. Here's two messages I sent out in our tracking network t...
Monday, 6 March 2006

A no-show of Lacrosse 5, and timings off again?

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Quicksat predicted two good near-zenith passes this evening, of both the Lacrosse 5 Rocket stage (2005-016B, #28647) and the payload itself,...
Saturday, 4 March 2006

Flaring Lacrosse 5

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This image was obtained by me this evening and shows Lacrosse 5 (2005-016A, #28646) while flaring. Here, it goes from about mag. +1.0 to +0....
Wednesday, 1 March 2006

Snow

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We are having snow here. Yesterday I had some hopes as there were some sharp clearings inbetween the snowstorms: but alas, not during the re...
Saturday, 25 February 2006

Defeated by clouds again

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After a whole day with a bright blue frosty sky, mid-altitude stratus clouds moved in around dusk. Alas, a pity, because there were a number...

Lacrosse 5 and Murphy...

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Soooooo.......I had the alarm clock set to try to catch an early morning pass (4:47 am local time) of Lacrosse 5 with the camera... And I...
Friday, 24 February 2006

First observations at the new location!

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After a long period with grey skyscapes and generally uncomfy weather, the skies turned into a beautiful blue today. So I ran Quicksat to s...
Friday, 17 February 2006

From Cospar 4352 to 4353

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The move has been completed! Station 4352 has changed location and become 4353 . Last Sunday we transferred all my belongings to my new home...
Saturday, 4 February 2006

Suitsat becomes Mutesat....

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Last night during an EVA, ISS station commander Bill McArthur and flight engineer Valery Tokarev released an old Orlan spacesuit into space....
Thursday, 2 February 2006

New Cospar ID and coordinates

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With the move, SatTrackCam will of course get a new Cospar ID. Pierre Neirinck has assigned my new location the Cospar ID number 4353 . The...

The new home of SatTrackCam...!

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I got the keys to my new home yesterday. So I have been amusing myself with measuring up the apartment, making a map of it, and trying to fi...
Saturday, 28 January 2006

Beautiful Stardust re-entry movie!

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Stardust Capsule Reentry Movie filmed from NASA DC-8 aircraft (requires Quicktime) This is a stunning movie of the Stardust capsule re-entry...
Friday, 20 January 2006

SatTrackCam is going to move!!!

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SatTrackCam is going to move! I am moving to a new home here in Leiden in mid-February. The move will be less than 1 kilometer in distance, ...
Saturday, 15 October 2005

Failed - trail too faint (Lacrosse 4)

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Saturday, October 15, 2005, 20:49:24 Just tried to image a pass of Lacrosse 4. The almost full moon was already up, and it was slightly hazy...
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About the Author

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SatTrackCam Leiden
Dutch, 55, Lecturer in optical Space Situational Awareness at Delft University of Technology, Faculty of Aerospace Engineering, the Netherlands. Former stone age archaeologist (PhD). Also a meteoriticist and asteroid discoverer.
Asteroid (183294) Langbroek was named after me. In 2012, I received the Dr. J. van der Bilt Prize of the Royal Dutch Astronomy Association (KNVWS) for my work on meteors, asteroids and satellites.Opinions expressed on this blog are entirely my own, not those of my employer.
You can find me on Twitter via @Marco_Langbroek and at BlueSky as @marcolangbroek.bsky.social

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