HST
1 20580U 90037B 05270 20480210 00000821 00000-0 51672-4 0 4356 2 20580 28 4697 323 9974 0003697 270 1778 89 8387 14 99849976645573 ISS
1 25544U 98067A 05271 08573113 00018051 00000-0 13102-3 0 4432 2 25544 51 6433 93 9238 0001806 86 2857 13 4056 15 73472395391872 CHANDRA
1 25867U 99040B 05270 95833333 00000000 00000-0 00000+0 0 8371 2 25867 57 6955 101 8337 5680567 296 4733 356 6284 0 37790518 1219

These 2-Line Elements (TLEs) are from US Space Command courtesy TS Kelso's Celestial BBS Updates will normally be provided three times a week, or daily during Space Shuttle missions

   David Bate for David Cottle