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, 31 August 2017

North Korea's 29 August Hwasong-12 test with Japan fly-over: did it go as planned?

›

image: KCNA It are hectic times for those (like this author) interested in the North Korean rocketry program. The past months have seen ...

Sunday, 13 August 2017

[UPDATED] My take on North Korea's hypothetical threath to Guam

›

click to enlarge The sabre rattling between North Korea and the United States is continuing, with increasingly colourful and volatile l...

Saturday, 29 July 2017

North Korea's July 28 ICBM test

›

On 28 July 2017 around 14:45 UT, North Korea tested another ICBM . Early reports from US Military sources indicate a night-time launch f...

Monday, 3 July 2017

Close Encounters of the Classified Kind

›

The Space Review has just published my paper on the close ISS flyby of US spy satelllite USA 279.

Saturday, 1 July 2017

OT: Broek in Waterland, the sixth Dutch meteorite (observed fall, 11 January 2017)

›

Last Monday was a special and extremely busy day. At Naturalis , the Dutch National Museum of Natural History, we presented a new meteor...

1 comment:

Tuesday, 6 June 2017

[UPDATED] Close Encounters of the Classified Kind: a post-event analysis of the close approach of USA 276 to the ISS on June 3

›

3 July 2017: A paper which is a further evolved version of this blog post has appeared in The Space Review . I advise you to read that pape...

18 comments:

Monday, 5 June 2017

Cygnus OA-7 and Dragon CRS-11 chasing the ISS in a twilight sky

›

ISS and Cygnus OA-7. Click to enlarge June 3, the launch date of SpaceX's Dragon CRS-11 cargo spacecraft to the International Spac...

1 comment:

Thursday, 1 June 2017

The Plot Thickens (Ball Aerospace, USA 276, RAVEN and the ISS)

›

( I acknowledge that what I write below is, again, matter of a highly speculative nature, and should be treated as such ) In a previous po...

1 comment:

Tuesday, 30 May 2017

[UPDATED] USA 276 (the NROL-76 payload) and the ISS near DRAGON CRS-11 berthing.

›

click image to enlarge >> UPDATES to this story with new observational data, updated calculations and new visualizations ARE AT...

‹

›

Home

View web version

About the Author

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

View my complete profile