Orbital elements of OPS 3811
| Launched | 4 May 1971 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 5204 |
| Alternative names |
DSP 2 |
| 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 Sep 15 17:56 | 2025 Sep 15 05:22:28 | 0.5055 | 0.00218 | 19.7920 | 343.7188 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 14 17:56 | 2025 Sep 14 05:25:47 | 0.5079 | 0.00218 | 19.7821 | 343.8386 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 12 17:57 | 2025 Sep 11 20:59:32 | 0.5138 | 0.00216 | 19.7598 | 344.1696 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 11 17:57 | 2025 Sep 11 05:36:02 | 0.5154 | 0.00216 | 19.7531 | 344.3077 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 10 17:56 | 2025 Sep 10 03:56:47 | 0.5180 | 0.00215 | 19.7430 | 344.5182 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 08 17:57 | 2025 Sep 08 05:46:10 | 0.5228 | 0.00213 | 19.7253 | 344.9018 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 07 17:56 | 2025 Sep 07 04:06:51 | 0.5253 | 0.00212 | 19.7155 | 345.1120 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 06 20:41 | 2025 Sep 06 03:30:38 | 0.5277 | 0.00211 | 19.7067 | 345.3147 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 03 17:57 | 2025 Sep 03 00:55:08 | 0.5346 | 0.00209 | 19.6822 | 345.9408 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 02 17:56 | 2025 Sep 02 02:40:53 | 0.5367 | 0.00208 | 19.6758 | 346.0921 | 135.3581 | 0.98162 | 5.500 |
| 2025 Sep 01 17:56 | 2025 Sep 01 01:01:36 | 0.5390 | 0.00208 | 19.6682 | 346.2916 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 31 17:56 | 2025 Aug 30 23:22:07 | 0.5413 | 0.00208 | 19.6608 | 346.4596 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 30 17:56 | 2025 Aug 30 01:07:59 | 0.5433 | 0.00208 | 19.6550 | 346.5915 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 29 17:56 | 2025 Aug 29 06:19:03 | 0.5449 | 0.00208 | 19.6502 | 346.6671 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 28 17:57 | 2025 Aug 27 18:03:21 | 0.5480 | 0.00209 | 19.6405 | 346.8259 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 27 17:56 | 2025 Aug 26 23:35:05 | 0.5498 | 0.00209 | 19.6353 | 346.9135 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 26 17:56 | 2025 Aug 25 21:55:42 | 0.5521 | 0.00209 | 19.6282 | 347.0388 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 25 17:56 | 2025 Aug 24 20:16:25 | 0.5544 | 0.00209 | 19.6211 | 347.1597 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 24 17:56 | 2025 Aug 23 20:19:36 | 0.5567 | 0.00210 | 19.6144 | 347.2786 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 23 17:56 | 2025 Aug 20 18:46:45 | 0.5640 | 0.00210 | 19.5930 | 347.5814 | 135.3581 | 0.98162 | 5.500 |
| 2025 Aug 22 17:56 | 2025 Aug 20 18:46:45 | 0.5640 | 0.00210 | 19.5930 | 347.5814 | 135.3581 | 0.98162 | 5.500 |