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ISS IGS 5 H2A Rocket Image 2010/05/04(UT)
Ralf Vandebergh
R.Vandebergh
|
Ralf Vandebergh(250mm Newton) |
subject: 2010/05/04 ISS observations-- Cupola detail
When I saw the results I took on May 4th during one of the 2 favorable
ISS passes of the evening, I was amazed by the clearity of the Cupola
I saw on the images. You can actually recognize the 7 single windows,
6 side-windows and one top-window. The diameter of the Cupola is around
2 metres. I have added a partial enlargement with some higher contrast
and a comparison. (10inch Newtonian, manually tracked)
subject: 2010/05/04 ISS observations-- Cupola detail
_____________________________________________________
When I saw the results I took on May 4th during one of the 2 favorable
ISS passes of the evening, I was amazed by the clearity of the Cupola
I saw on the images. You can actually recognize the 7 single windows,
6 side-windows and one top-window. The diameter of the Cupola is around
2 metres. I have added a partial enlargement with some higher contrast
and a comparison. (10inch Newtonian, manually tracked)
2010/05/04_ISS-Cupola observation
This image taken May 4, shows all major components
of the Cupola on the ISS, including (open)shutters,
windows and mid (top) window. You must have a bit
luck that the shutter of the Cupola are open.
They are closed when not used to protect the
windows mainly from debree. When the shutters
are closed, the view from Earth is no more
then a 'boring' circular white spot on that
place. Imagery as always: 10inch Newtonian,
fully manually tracked using 6x magnifiction
secundary scope.
IGS 5 H2A Rocket 36105 2009-066-B observation
Hereby a succeeded result of images taken May 4 during an 83 degrees
pass of this Japanese rocket body, probably an upper stage. It is from a
pretty recent launch in 2009. Both frames, and more frames of the session
show again a pretty comparable view, thanks to the exellent seeing.
I have quite some years experience now imaging smaller satellites and
space junk aside from ISS and Shuttle imaging. One of the biggest
difficulties seems the interpretation of the view. A view of a satellite
from Earth not as easy as seeing a satellite in the factory or images
from a few meters in space. We have to do alsways with light-and shade
play on a very small object. A Space Shuttle image from Earth almost never
looks exactly as seen from the ISS due to this, and realize that most
satellites are just as big as parts of the shuttle. During a pass you have
not only variations in seeing but also variations in angle of illumination.
Therefore I watch the entire sequence closely and when you see in most
frames the same or comparable view, aside from some small deformations
by seeing, then its pretty reliable. This could be seen nicely in the
recent USA-161 observation http://tinyurl.com/38um2k3
first frames and last frames show a pretty comparable view,
(only is the left image from further distance and has lower resolution)
only midway the seqence there was a flare, which illuminated in some
frames more of the solarpanels and caused a little different view of
the object. Therefore, for interpretation, its important that you
look over the entire sequence, and when most frames show comparable
orientation and general view of the detail, its reliable.
subject: IGS 5 H2A Rocket 36105 2009-066-B_update
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A result of new frame-selection in an earlier part of the
sequence. The second stage of the Japanese H2A rocket
and its shape seems very well recognizable. You can actually
make out the second stage engine and the thicker part
of the rocket on the other side!
=Note= This is an object in an orbit around 600km altitude.
(the hight mentioned in the launch-sequence below is not
meant for this particular launch and just illustrates the
later stages in the launch-process.
[バンディバ:オランダ]
[Ralf Vandebergh:Neighbourhood of Maastricht Netherlands]
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