Orbital elements of VANGUARD 3
| Launched | 17 September 1959 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20 |
| 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 03:41:36 | 33.3390 | 0.16398 | 11.7840 | 19.7108 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 12 17:57 | 2025 Sep 03 04:36:53 | 33.3471 | 0.16405 | 14.6507 | 315.6528 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 11 17:57 | 2025 Sep 03 04:36:53 | 33.3471 | 0.16405 | 14.6507 | 315.6528 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 10 17:56 | 2025 Sep 03 04:36:53 | 33.3471 | 0.16405 | 14.6507 | 315.6528 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 08 17:57 | 2025 Sep 03 04:36:53 | 33.3471 | 0.16405 | 14.6507 | 315.6528 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 07 17:56 | 2025 Sep 03 04:36:53 | 33.3471 | 0.16405 | 14.6507 | 315.6528 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 06 20:41 | 2025 Sep 03 04:36:53 | 33.3471 | 0.16405 | 14.6507 | 315.6528 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 03 17:57 | 2025 Sep 03 04:36:53 | 33.3471 | 0.16405 | 14.6507 | 315.6528 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 02 17:56 | 2025 Aug 27 15:39:51 | 33.3520 | 0.16412 | 16.2172 | 280.6676 | 346.0003 | 11.61004 | 8.243 |
| 2025 Sep 01 17:56 | 2025 Aug 27 15:39:51 | 33.3520 | 0.16412 | 16.2172 | 280.6676 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 31 17:56 | 2025 Aug 27 15:39:51 | 33.3520 | 0.16412 | 16.2172 | 280.6676 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 30 17:56 | 2025 Aug 27 15:39:51 | 33.3520 | 0.16412 | 16.2172 | 280.6676 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 29 17:56 | 2025 Aug 27 15:39:51 | 33.3520 | 0.16412 | 16.2172 | 280.6676 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 28 17:57 | 2025 Aug 27 15:39:51 | 33.3520 | 0.16412 | 16.2172 | 280.6676 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 27 17:56 | 2025 Aug 23 06:21:29 | 33.3517 | 0.16412 | 17.2681 | 257.1980 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 26 17:56 | 2025 Aug 23 06:21:29 | 33.3517 | 0.16412 | 17.2681 | 257.1980 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 25 17:56 | 2025 Aug 23 06:21:29 | 33.3517 | 0.16412 | 17.2681 | 257.1980 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 24 17:56 | 2025 Aug 23 06:21:29 | 33.3517 | 0.16412 | 17.2681 | 257.1980 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 23 17:56 | 2025 Aug 23 06:21:29 | 33.3517 | 0.16412 | 17.2681 | 257.1980 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 22 17:56 | 2025 Aug 18 12:48:44 | 33.3505 | 0.16411 | 18.4013 | 231.8902 | 346.0003 | 11.61004 | 8.243 |
| 2025 Aug 20 17:56 | 2025 Aug 18 12:48:44 | 33.3505 | 0.16411 | 18.4013 | 231.8902 | 346.0003 | 11.61004 | 8.243 |