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.

Monday, 12 October 2020

North Korea's October ICBM surprise

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click to enlarge. Screenshot from KCTV broadcast Saturday 10 October 2020 saw North Korea's big military parade in PyongYang, connected ...
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Friday, 9 October 2020

No, this reentry footage is not a fireball that appeared over Mexico on September 6/7

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    On 7 September 2020 near 2:14 UT (6 September 22:14 local time) a bright fireball appeared over Mexico, creating some media attention. ...
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Wednesday, 30 September 2020

A very unusual fireball over NW Europe on 22 September 2020 (that went in and out of the atmosphere again)

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  The fireball of 22 sept 2020, ~3:53:40 UT. Image (c) Cees Bassa (stack of 2 images) In the early morning of 22 September 2020 , around 3:...
Sunday, 20 September 2020

Observing the mysterious "Object A" (2020-063G), left in orbit by China's 'Spaceplane'

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  Earlier this month I wrote a post about China's brand new, recently launched and landed 'Reusable Test Spacecraft' (2020-0...
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Thursday, 17 September 2020

The structure of Space (2): formation of a geosynchronous ring

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  A year ago, I published a post on ' The structure of Space '. In that contribution, I discussed structure in orbital element spac...
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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...
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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 ...
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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...
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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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