Orbital elements of VANGUARD R/B
| Launched | 16 March 1958 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 16 |
| 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 19 17:58 | 2026 Apr 19 01:31:18 | 34.2693 | 0.20193 | 7.7329 | 230.8933 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 18 17:56 | 2026 Apr 12 11:58:46 | 34.2631 | 0.20190 | 8.9982 | 203.1715 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 16 17:57 | 2026 Apr 12 11:58:46 | 34.2631 | 0.20190 | 8.9982 | 203.1715 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 14 17:57 | 2026 Apr 12 11:58:46 | 34.2631 | 0.20190 | 8.9982 | 203.1715 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 13 17:57 | 2026 Apr 12 11:58:46 | 34.2631 | 0.20190 | 8.9982 | 203.1715 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 12 17:57 | 2026 Apr 08 12:05:48 | 34.2604 | 0.20190 | 9.7685 | 186.2924 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 11 17:57 | 2026 Apr 08 12:05:48 | 34.2604 | 0.20190 | 9.7685 | 186.2924 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 10 17:58 | 2026 Apr 08 12:05:48 | 34.2604 | 0.20190 | 9.7685 | 186.2924 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 09 18:01 | 2026 Apr 08 12:05:48 | 34.2604 | 0.20190 | 9.7685 | 186.2924 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 08 17:57 | 2026 Apr 08 12:05:48 | 34.2604 | 0.20190 | 9.7685 | 186.2924 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 07 17:57 | 2026 Apr 02 05:25:33 | 34.2582 | 0.20191 | 10.9790 | 159.7689 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 06 17:57 | 2026 Apr 02 05:25:33 | 34.2582 | 0.20191 | 10.9790 | 159.7689 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 05 17:56 | 2026 Apr 02 05:25:33 | 34.2582 | 0.20191 | 10.9790 | 159.7689 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 04 17:57 | 2026 Apr 02 05:25:33 | 34.2582 | 0.20191 | 10.9790 | 159.7689 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 03 17:56 | 2026 Apr 02 05:25:33 | 34.2582 | 0.20191 | 10.9790 | 159.7689 | 109.4282 | 10.49585 | 8.243 |
| 2026 Apr 02 18:03 | 2026 Apr 02 05:25:33 | 34.2582 | 0.20191 | 10.9790 | 159.7689 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 31 17:57 | 2026 Mar 26 06:45:10 | 34.2585 | 0.20196 | 12.3180 | 130.4316 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 30 17:58 | 2026 Mar 26 06:45:10 | 34.2585 | 0.20196 | 12.3180 | 130.4316 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 29 17:57 | 2026 Mar 26 06:45:10 | 34.2585 | 0.20196 | 12.3180 | 130.4316 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 28 18:57 | 2026 Mar 26 06:45:10 | 34.2585 | 0.20196 | 12.3180 | 130.4316 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 27 18:57 | 2026 Mar 26 06:45:10 | 34.2585 | 0.20196 | 12.3180 | 130.4316 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 26 18:57 | 2026 Mar 26 06:45:10 | 34.2585 | 0.20196 | 12.3180 | 130.4316 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 25 18:56 | 2026 Mar 20 11:26:51 | 34.2589 | 0.20200 | 13.4371 | 105.9187 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 24 18:56 | 2026 Mar 20 11:26:51 | 34.2589 | 0.20200 | 13.4371 | 105.9187 | 109.4282 | 10.49585 | 8.243 |
| 2026 Mar 23 18:56 | 2026 Mar 20 11:26:51 | 34.2589 | 0.20200 | 13.4371 | 105.9187 | 109.4282 | 10.49585 | 8.243 |