Orbital elements of YAOGAN-21
| Launched | 7 September 2014 |
| Flight ended | – |
| Launch site | Taiyuan Space Center, PRC |
| Owner | People's Republic of China |
| NORAD ID | 40143 |
| 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 |
| 2025 Jun 30 17:56 | 2025 Jun 30 12:26:06 | 97.1978 | 0.00110 | 15.4473 | 307.2234 | 52.7996 | 15.23501 | – |
| 2025 Jun 29 17:56 | 2025 Jun 29 12:47:24 | 97.1977 | 0.00111 | 15.3843 | 311.1719 | 52.7996 | 15.23501 | – |
| 2025 Jun 28 17:56 | 2025 Jun 28 11:34:06 | 97.1978 | 0.00112 | 15.3170 | 315.5269 | 52.7996 | 15.23501 | – |
| 2025 Jun 27 17:56 | 2025 Jun 27 11:55:23 | 97.1979 | 0.00112 | 15.2540 | 319.5087 | 52.7996 | 15.23501 | – |
| 2025 Jun 26 17:56 | 2025 Jun 26 09:07:29 | 97.1983 | 0.00114 | 15.1826 | 323.8904 | 52.7996 | 15.23501 | – |
| 2025 Jun 25 17:56 | 2025 Jun 25 12:38:09 | 97.1984 | 0.00101 | 15.1279 | 319.9265 | 52.7996 | 15.23501 | – |
| 2025 Jun 24 17:56 | 2025 Jun 24 12:59:48 | 97.1986 | 0.00101 | 15.0649 | 323.9708 | 52.7996 | 15.23501 | – |
| 2025 Jun 23 17:56 | 2025 Jun 23 11:46:54 | 97.1989 | 0.00102 | 14.9976 | 328.3193 | 52.7996 | 15.23501 | – |
| 2025 Jun 22 17:56 | 2025 Jun 22 12:08:32 | 97.1990 | 0.00103 | 14.9346 | 332.0897 | 52.7996 | 15.23501 | – |
| 2025 Jun 21 17:56 | 2025 Jun 21 12:30:10 | 97.1990 | 0.00104 | 14.8715 | 335.8670 | 52.7996 | 15.23501 | – |
| 2025 Jun 20 17:57 | 2025 Jun 20 12:51:47 | 97.1989 | 0.00105 | 14.8085 | 339.6835 | 52.7996 | 15.23501 | – |
| 2025 Jun 19 17:56 | 2025 Jun 19 11:38:50 | 97.1988 | 0.00106 | 14.7412 | 343.7825 | 52.7996 | 15.23501 | – |
| 2025 Jun 18 17:56 | 2025 Jun 18 12:00:26 | 97.1986 | 0.00108 | 14.6782 | 347.5411 | 52.7996 | 15.23501 | – |
| 2025 Jun 17 17:56 | 2025 Jun 17 12:22:01 | 97.1984 | 0.00109 | 14.6152 | 351.1896 | 52.7996 | 15.23501 | – |
| 2025 Jun 16 17:56 | 2025 Jun 16 12:43:36 | 97.1983 | 0.00110 | 14.5521 | 354.7986 | 52.7996 | 15.23501 | – |
| 2025 Jun 15 17:56 | 2025 Jun 15 03:37:48 | 97.1982 | 0.00111 | 14.4638 | 359.8861 | 52.7996 | 15.23501 | – |
| 2025 Jun 14 17:56 | 2025 Jun 14 13:26:44 | 97.1983 | 0.00112 | 14.4260 | 2.0618 | 52.7996 | 15.23501 | – |
| 2025 Jun 13 17:56 | 2025 Jun 13 12:13:42 | 97.1984 | 0.00113 | 14.3588 | 5.8328 | 52.7996 | 15.23501 | – |
| 2025 Jun 12 17:56 | 2025 Jun 12 12:35:14 | 97.1987 | 0.00115 | 14.2957 | 9.3204 | 52.7996 | 15.23501 | – |
| 2025 Jun 11 17:56 | 2025 Jun 11 12:56:45 | 97.1990 | 0.00116 | 14.2327 | 12.8139 | 52.7996 | 15.23501 | – |
| 2025 Jun 10 17:56 | 2025 Jun 10 13:18:15 | 97.1993 | 0.00117 | 14.1696 | 16.3350 | 52.7996 | 15.23501 | – |
| 2025 Jun 09 17:56 | 2025 Jun 08 17:10:21 | 97.1997 | 0.00119 | 14.0519 | 22.6349 | 52.7996 | 15.23501 | – |
| 2025 Jun 08 17:56 | 2025 Jun 08 10:52:04 | 97.1997 | 0.00120 | 14.0351 | 23.5891 | 52.7996 | 15.23501 | – |
| 2025 Jun 07 17:56 | 2025 Jun 07 12:48:06 | 97.1998 | 0.00121 | 13.9763 | 26.5941 | 52.7996 | 15.23501 | – |
| 2025 Jun 06 17:56 | 2025 Jun 06 11:34:59 | 97.1998 | 0.00122 | 13.9090 | 30.1547 | 52.7996 | 15.23501 | – |
| 2025 Jun 05 17:56 | 2025 Jun 05 04:03:34 | 97.1998 | 0.00123 | 13.8250 | 34.5210 | 52.7996 | 15.23501 | – |
| 2025 Jun 04 17:57 | 2025 Jun 04 12:17:51 | 97.1998 | 0.00124 | 13.7830 | 36.7512 | 52.7996 | 15.23501 | – |
| 2025 Jun 03 17:57 | 2025 Jun 03 12:39:16 | 97.1997 | 0.00125 | 13.7199 | 39.9756 | 52.7996 | 15.23501 | – |