North Korea's new Kwangmyŏngsŏng-4 satellite
Taken by Marco Langbroek on February 28, 2016 @
Leiden, Netherlands
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Camera Used: Canon Canon EOS 60D
Exposure Time: 2/1
Aperture: f/1.4
ISO: 1600
Date Taken: 2016:02:28 22:01:58
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Details:
North Korea's new satellite Kwangmyŏngsŏng-4 (KMS-4)is starting to make visible evening passes for NW Europe. Yesterday evening was very clear. Anticipating a faint object, I used the 2.8/180 mm Zeiss Sonnar lens on my Canon EOS 60D to image it. That lens captures faint objects but has the disadvantage of a small FOV (5x7 degrees).
KMS-4 showed up on two of the images, one of which I show here in two versions: color positive, and black-and-white negative (the faint trail stands out a bit better in the latter version).
For as far as I can tell over the short imaging arc (~6 seconds) there was no brightness variation. So the satellite is stable, or if it is tumbling it must be a very slow tumble.
I also imaged the UNHA-3 upper stage of the launch. The upper stage is brighter and is tumbling (they often do). As a result it is flashing with a nice periodicity of 2.39 seconds (see composite image, and also the diagram).
Photographer's website:
http://sattrackcam.blogspot.com
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