Orbital elements of COSMOS 2503
| Launched | 26 February 2015 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 40420 |
| 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 Dec 30 18:56 | 2025 Dec 30 03:16:53 | 97.8580 | 0.00179 | 3.5254 | 103.3185 | 257.0044 | 15.05962 | – |
| 2025 Dec 29 18:56 | 2025 Dec 29 03:21:41 | 97.8582 | 0.00179 | 3.4577 | 106.4587 | 257.0044 | 15.05962 | – |
| 2025 Dec 28 18:57 | 2025 Dec 28 14:36:15 | 97.8583 | 0.00179 | 3.4216 | 108.1264 | 257.0044 | 15.05962 | – |
| 2025 Dec 27 18:57 | 2025 Dec 27 09:54:00 | 97.8582 | 0.00177 | 3.3404 | 111.9145 | 257.0044 | 15.05962 | – |
| 2025 Dec 26 18:56 | 2025 Dec 26 14:45:50 | 97.8580 | 0.00177 | 3.2862 | 114.6173 | 257.0044 | 15.05962 | – |
| 2025 Dec 25 18:57 | 2025 Dec 25 03:40:50 | 97.8580 | 0.00176 | 3.1869 | 119.3018 | 257.0044 | 15.05962 | – |
| 2025 Dec 24 18:56 | 2025 Dec 24 02:09:56 | 97.8579 | 0.00175 | 3.1147 | 122.6522 | 257.0044 | 15.05962 | – |
| 2025 Dec 23 18:56 | 2025 Dec 22 15:04:55 | 97.8579 | 0.00174 | 3.0154 | 127.2175 | 257.0044 | 15.05962 | – |
| 2025 Dec 22 18:57 | 2025 Dec 22 00:43:47 | 97.8579 | 0.00174 | 2.9748 | 129.0686 | 257.0044 | 15.05962 | – |
| 2025 Dec 21 18:57 | 2025 Dec 21 13:34:00 | 97.8578 | 0.00174 | 2.9432 | 130.5391 | 257.0044 | 15.05962 | – |
| 2025 Dec 20 18:57 | 2025 Dec 20 13:38:45 | 97.8580 | 0.00173 | 2.8755 | 133.6247 | 257.0044 | 15.05962 | – |
| 2025 Dec 19 18:57 | 2025 Dec 19 02:33:43 | 97.8583 | 0.00172 | 2.7762 | 138.1425 | 257.0044 | 15.05962 | – |
| 2025 Dec 18 18:57 | 2025 Dec 18 04:14:09 | 97.8585 | 0.00172 | 2.7130 | 141.0038 | 257.0044 | 15.05962 | – |
| 2025 Dec 17 18:58 | 2025 Dec 17 05:54:35 | 97.8588 | 0.00172 | 2.6499 | 143.9008 | 257.0044 | 15.05962 | – |
| 2025 Dec 16 18:57 | 2025 Dec 15 20:25:13 | 97.8595 | 0.00172 | 2.5551 | 148.2125 | 257.0044 | 15.05962 | – |
| 2025 Dec 15 18:58 | 2025 Dec 14 17:18:36 | 97.8598 | 0.00171 | 2.4784 | 151.6219 | 257.0044 | 15.05962 | – |
| 2025 Dec 14 18:56 | 2025 Dec 13 20:34:42 | 97.8600 | 0.00171 | 2.4197 | 154.3300 | 257.0044 | 15.05962 | – |
| 2025 Dec 13 18:56 | 2025 Dec 13 03:02:11 | 97.8600 | 0.00170 | 2.3700 | 156.6604 | 257.0044 | 15.05962 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 04:42:36 | 97.8600 | 0.00169 | 2.3068 | 159.6679 | 257.0044 | 15.05962 | – |
| 2025 Dec 11 18:56 | 2025 Dec 11 04:47:20 | 97.8601 | 0.00168 | 2.2391 | 163.0237 | 257.0044 | 15.05962 | – |
| 2025 Dec 10 18:56 | 2025 Dec 10 09:39:06 | 97.8603 | 0.00167 | 2.1849 | 165.7918 | 257.0044 | 15.05962 | – |
| 2025 Dec 09 18:56 | 2025 Dec 09 09:43:49 | 97.8603 | 0.00166 | 2.1172 | 169.2139 | 257.0044 | 15.05962 | – |
| 2025 Dec 08 18:56 | 2025 Dec 08 05:01:29 | 97.8603 | 0.00165 | 2.0360 | 173.4765 | 257.0044 | 15.05962 | – |
| 2025 Dec 07 18:56 | 2025 Dec 07 01:54:48 | 97.8603 | 0.00164 | 1.9592 | 177.5967 | 257.0044 | 15.05962 | – |
| 2025 Dec 06 18:56 | 2025 Dec 06 03:35:12 | 97.8607 | 0.00163 | 1.8961 | 181.0486 | 257.0044 | 15.05962 | – |
| 2025 Dec 05 18:57 | 2025 Dec 05 03:39:53 | 97.8608 | 0.00162 | 1.8283 | 184.7518 | 257.0044 | 15.05962 | – |
| 2025 Dec 04 18:57 | 2025 Dec 04 03:44:34 | 97.8609 | 0.00162 | 1.7606 | 188.2266 | 257.0044 | 15.05962 | – |
| 2025 Dec 03 18:56 | 2025 Dec 03 10:12:00 | 97.8611 | 0.00161 | 1.7110 | 190.6691 | 257.0044 | 15.05962 | – |