Designation
| Spacetrack catalog number | 25471 |
| COSPAR ID | 1998-051-E |
| Name in Spacetrack catalog | IRIDIUM 77 |
Satellite Details
| Orbit | 776 x 779 km, 86.4° |
| Country/organisation of origin | United States |
| Intrinsic brightness (Magnitude) | 6.2 (at 1000km distance, 50% illuminated) | | Maximum brightness (Magnitude) | 5.1 (at perigee, 100% illuminated) |
Launch
| Date (UTC) | 08 September 1998 21:13 |
| Launch site | Vandenberg AFB,
United States |
| Launch vehicle | Delta 7920-10C |
Description
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