Thursday, 30 May 2019

Numbers: the SpaceX Starlink constellation in perspective with what is currently orbiting earth

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click to enlarge The image above was taken by me in the evening of May 28 with a Canon EOS 60D and Samyang 1.4/85 mm lens. It shows a p...
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Saturday, 25 May 2019

WOWOWOW!!!! A SPECTACULAR view of the SpaceX Starlink satellite train!

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On 24 May 2019 at 2:30 UT, SpaceX launched STARLINK , a series of 60 satellites that is the first launch of many that will create a larg...
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Sunday, 5 May 2019

Orbital Reflector has joined the Dark Side

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image: Nevada Museum of Art Orbital Reflector will not shine brightly in our night sky. The extraordinary Art project by Trevor Paglen...
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Wednesday, 1 May 2019

Why India's ASAT test was reckless (updated)

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Today, I published a large article in The Diplomat : " Why India’s ASAT Test Was Reckless. Publicly available data contradicts ...
Friday, 5 April 2019

First debris pieces from the Indian ASAT test of 27 March catalogued

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click to enlarge Today the first 57 orbital element sets for Microsat-r debris, debris from the Indian ASAT test on March 27 , appeared...
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Tuesday, 2 April 2019

Why even low altitude ASAT intercepts are a threat to operational satellites in higher orbits

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Click diagram to enlarge. Orbital data from CSpOC So how big a threat is this Indian Anti-Satellite (ASAT) test of 27 March to operati...
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An earlier, failed (?) ASAT test by India on 12 February 2019

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image: DRDO In my previous two posts ( here and here ), I analysed the much discussed Anti-Satellite (ASAT) test by India taking out M...
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Sunday, 31 March 2019

Debris from India's ASAT test: how long until it is gone?

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click diagram to enlarge After India's ASAT test on 27 March 2019 , on which I wrote in detail in my previous post , many people as...
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Wednesday, 27 March 2019

India's surprise ASAT test of 27 March 2019 (updated)

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Click to enlarge. Reconstruction made with STK. The Indian Prime Minister Narendra Modi made a surprise announcement in the morni...
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Wednesday, 20 March 2019

No, the failed Venus lander from Kosmos 482 is not about to come down yet

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Venera landing craft (photo: NASA) Late February 2019, a number of news outlets (e.g. here and here ) copied a story that originally...
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Wednesday, 13 February 2019

USA 290 (NROL-71)

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click image to enlarge The photograph above is not the best of images, but it does show the trail (faint) of  USA 290 , the payload of ...
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