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Old August 25th 08, 05:56 PM posted to sci.space.history,sci.space.station,sci.space.policy
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Default ISS - doing Russian military recon work?

On Aug 25, 7:44*am, Pat Flannery wrote:
John Doe wrote:

For a picture to have value to the military, it need to be accompanied
with precise position, time, attitude and altitude. satellites do that.
Handheld cameras don't.


If you are doing precision targeting, you may need that, but for just
checking up on what's going on on the ground, time and date will be
enough if you can locate what the photo is of by recognizable features
on the ground. Measuring those will give you its scale.


I agree that for many purposes, like BDA, precision is a lesser
concern: Does the runway have craters in it or not? Is the building
still standing? Etc.

Also, if you've done your homework, you already know the coordinates
of conspicuous fixed points in the image and can use that to determine
the coordinates of new features.

More also, if you actually need look angles, the time contained in the
ISS camera data is precise down to the millisecond (whether it's that
accurate is a relevant question). Since the ISS orbital elements are
freely available, the time can be used to determine the location of
the space station with considerable accuracy.