To: 2 STS TLE 2 From: David Cottle <dcottle@ozemail.com.au> Subject: Current STS-72 TLEs, KEPs and State Vector <Set 18, Rev 045> STS-72 1 23762U 96001A 96014.25303260 -.00000055 00000-0 -21563-5 0 183 2 23762 20.4370 109.4939 1549586 140.2095 128.3094 18.55509129 453 Launch time for STS-72: 11 JAN 96 @ 09:41:00.086 UTC Earth-Fixed Greenwich State Vector : Vector format = 7 Satellite Name: STS-72 Catalog Number: 23762 96001A Epoch Date/Time: 96014.25303260400 01/14/1996 06:04:22.016 UTC ECI X: 5377.90433989233 km Y: 3237.91148476593 km Z: -2289.5539999999 km Xdot: -2.9311778345871 km/s Ydot: 6.67758874859826 km/s Zdot: 0.20000000000000 km/s ndot/2 (drag): -0.00000055040 rev/day^2 nddt/6: 0.00000E+00 rev/day^3 Bstar: -2.15627E-06 1/Earth Radii Elset #: 18 Rev @ Epoch: 45.74594678702 Keplerian Elements (Amsat format): Satellite: STS-72 Catalog number: 23762 Epoch time: 96014.25303260 Element set: 18 Inclination: 20.4370 deg RA of node: 109.4939 deg Eccentricity: 0.1549586 Arg of perigee: 140.2095 deg Mean anomaly: 128.3094 deg Mean motion: 18.55509129 rev/day ecay rate: -5.50400e-07 rev/day^2 Epoch rev: 45 Check sum: 296 Drag Factor is 0.1 SPACE SHUTTLE ORBITAL DATA: These 2-line elements have been generated using Ken Ernandes' program VEC2TLE using real time state vector data supplied by DOD C-Band Radar Network courtesy Dave Simonson. Note that the epoch of the 2-line elements is the same as the state vector time. Occasionally these elements are derived from the Goddard Space Flight Center (GSFC) NASA Orbital Information Group (OIG), using Curtis Haases' program VEC2VIF that formats the OIG vectors for use by VEC2TLE. The source of the data can be confirmed by the data format of the vector ; EFG, ft, ft/s = DOD C-Band Radar Network ECI, km, km/s = NASA OIG RAID RBBS ECI M50, ft, ft/s = Rockwell Mission Support Room Drag and B-Star parameters are internally calculated by VEC2TLE using the drag factor. Rev numbers use NASA orbit numbering convention. Dave Cottle -------------- David Cottle IDB Communications. Sydney, Australia. -------------- David Cottle - Email Primary : dcottle@ozemail.com.au Email Backup : 100354.450@compuserve.com W.W.W. Page : http://www.ozemail.com.au/~dcottle/ .