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 |
| 2026 Apr 14 17:57 | 2026 Apr 14 11:29:23 | 0.2595 | 0.00226 | 1.4803 | 271.8522 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 13 17:57 | 2026 Apr 13 04:44:04 | 0.2577 | 0.00226 | 1.4361 | 272.6099 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 12 17:57 | 2026 Apr 12 11:38:47 | 0.2571 | 0.00226 | 1.4108 | 273.0109 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 11 17:57 | 2026 Apr 11 10:01:04 | 0.2559 | 0.00226 | 1.3731 | 273.6525 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 10 17:58 | 2026 Apr 10 04:45:38 | 0.2545 | 0.00226 | 1.3326 | 274.3378 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 09 18:01 | 2026 Apr 09 05:02:50 | 0.2535 | 0.00226 | 1.2993 | 274.8638 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 08 17:57 | 2026 Apr 08 05:07:28 | 0.2526 | 0.00227 | 1.2663 | 275.3729 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 07 17:57 | 2026 Apr 07 05:19:03 | 0.2517 | 0.00227 | 1.2335 | 275.8634 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 06 17:57 | 2026 Apr 06 05:39:56 | 0.2508 | 0.00228 | 1.2008 | 276.3429 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 05 17:56 | 2026 Apr 05 12:55:21 | 0.2501 | 0.00228 | 1.1784 | 276.6627 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 04 17:57 | 2026 Apr 04 05:11:46 | 0.2490 | 0.00229 | 1.1304 | 277.3227 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 03 17:56 | 2026 Apr 03 10:38:14 | 0.2483 | 0.00230 | 1.1050 | 277.6656 | 256.4515 | 0.98163 | 5.500 |
| 2026 Apr 02 18:03 | 2026 Apr 02 01:14:37 | 0.2471 | 0.00231 | 1.0513 | 278.3511 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 31 17:57 | 2026 Mar 31 05:44:26 | 0.2458 | 0.00233 | 0.9826 | 279.2075 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 30 17:58 | 2026 Mar 30 10:56:45 | 0.2450 | 0.00233 | 0.9513 | 279.5830 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 29 17:57 | 2026 Mar 29 04:43:06 | 0.2442 | 0.00234 | 0.9002 | 280.2153 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 28 18:57 | 2026 Mar 28 11:05:57 | 0.2435 | 0.00235 | 0.8685 | 280.6093 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 27 18:57 | 2026 Mar 27 06:02:54 | 0.2427 | 0.00236 | 0.8200 | 281.2022 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 26 18:57 | 2026 Mar 26 11:15:18 | 0.2420 | 0.00236 | 0.7831 | 281.6715 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 25 18:56 | 2026 Mar 25 09:37:22 | 0.2411 | 0.00237 | 0.7372 | 282.2556 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 24 18:56 | 2026 Mar 24 09:41:58 | 0.2403 | 0.00237 | 0.6928 | 282.8365 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 23 18:56 | 2026 Mar 23 08:04:02 | 0.2395 | 0.00237 | 0.6460 | 283.4737 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 22 18:56 | 2026 Mar 22 04:43:32 | 0.2387 | 0.00237 | 0.5970 | 284.1802 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 21 19:05 | 2026 Mar 21 08:13:20 | 0.2381 | 0.00237 | 0.5552 | 284.7956 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 20 18:57 | 2026 Mar 20 06:35:18 | 0.2374 | 0.00236 | 0.5082 | 285.5144 | 256.4515 | 0.98163 | 5.500 |
| 2026 Mar 19 18:56 | 2026 Mar 19 06:40:00 | 0.2368 | 0.00236 | 0.4634 | 286.2111 | 256.4515 | 0.98163 | 5.500 |