Thanks for compiling that list from the satsit report. Let's hope they stay in orbit for a long time as they are high level waste/cores. The Russian's purposely ejected the cores them from their LEO surveillance satellites (mostly from their radar sea-surveillance sats) to a higher long term storage orbit. My recollections is that a couple failed to go into a higher orbit and reentered. The most well known was the one that entered the atmosphere over northern Canada many years ago. The U.S. recently bought an engineering model, which I think included the fueled core, to see how we could make use of the design in our sats needing a large power supply. Haven't heard any more how we might make use of them but that doesn't mean we won't use the design. Hopefully, others will contribute to this topic. ---------------------------------------------------------------- Jeff Hunt, Charlotte Hall, Md. 38.51N, 76.76W E-mail: jhunt@eagle1.eaglenet.com ----------------------------------------------------------------