It is the result of the simple superposition of 308 120-seconds CCD images. The first picture began at 18h22m UT March 8th and the last picture ended at 04h57m UT of March 9th 1998. During this time the satellites were moving from the left to the right side of the image describing those loops. At the beginning of the night some clouds covered the sky as one can see from the diminished brightness of the satellite trails. The telescope was earth-fix.
North is up, East is left.
The field of view spans 11.8 x 8.1 arcminutes. The brightness of the satellites vary between 10 and 15mag. It may not be reproduced in any form without written permission of the copyright owner. Permission is granted for non-commercial and educational purposes only. Any reference must indicate the source and include a link tag to this site.