This whizz at star photography (Thierry Legault) predicted the time
when the shuttle and ISS orbit would cross the sun and in the six
seconds it took he filtered out the intense sunlight with a really
fast camera and got this shot. The orbit of the shuttle and ISS is
around 370 miles high.

Image of the solar transit of the International Space Station (ISS)
and Space Shuttle Atlantis (50 minutes after undocking from the ISS,
before return to Earth), taken from the area of Mamers (Normandie,
France) on september 17th 2006 at 13h 38min 50s UT. Takahashi TOA-150
refractor (diameter 150mm, final focal 2300mm), Baader helioscope and
Canon 5D. Exposure of 1/8000s at 50 ISO, extracted from a series of 14
images (3 images/s) started 2s before the predicted time.

Cheers,
SD