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.

Thursday, 27 March 2025

USA 498, the NROL-69 payload, found

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click map to enlarge On 24 March 2025 at 17:48 UTC , a Falcon 9 blasted off from Cape Canaveral launch pad 40 in Florida as NROL-69 , carryi...
Friday, 14 March 2025

The Russian eavesdropping satellite LUCH (OLYMP-K) 2 has moved significantly

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click diagram to enlarge I have written before on this blog about the Russian military SIGINT satellite LUCH (OLYMP-K) 2 (2023-031A). It ...
Wednesday, 19 February 2025

The reentry of a Falcon 9 upper stage over NW Europe on 19 February [UPDATED]

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In the early morning of February 19, 2025, near 3:45 UTC (4:45 CET) scores of people in the Netherlands, UK, Germany and Denmark saw a slow...
Friday, 31 January 2025

The North Korean satellite Malligyong-1 manoeuvered again, and this time it is different

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click diagram to enlarge In two contributions to The Space Review ( part 1 here and part 2 here ) for the first instance, as well as two f...
Wednesday, 8 January 2025

Possible Space Debris impact in Kenia: a piece of the Ariane SYLDA 2008-034C? [updated]

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the metal ring found near Mukuku in Kenia. Image: Kenia Space Agency the metal ring found near Mukuku in Kenia. Image: Kenia Space Agency th...
Thursday, 10 October 2024

X-37B Spaceplane OTV 7 to lower orbit by aerobraking

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X-37B OTV 7 near apogee  imaged by the author on 3 October 2024. Click to enlarge It looks like the time on orbit is about to end for missi...
Wednesday, 25 September 2024

A Chinese ICBM test launch at full range, into the central Pacific, on September 25

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click image to enlarge click image to enlarge In a surprise move, China conducted a (for them) unusual ICBM test launch on September 25, 2...
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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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