Orbital elements of IRIDIUM 21
| Launched | 10 June 1999 |
| Flight ended | 23 May 2018 |
| Launch site | Taiyuan Space Center, PRC |
| Owner | United States |
| NORAD ID | 25778 |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |