Orbital elements of M-4S R/B
| Launched | 15 February 1971 |
| Flight ended | – |
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) |
| Owner | Japan |
| NORAD ID | 5126 |
| 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 May 20 17:57 | 2026 May 16 13:51:58 | 29.6835 | 0.00122 | 22.2912 | 149.0494 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 19 17:58 | 2026 May 16 13:51:58 | 29.6835 | 0.00122 | 22.2912 | 149.0494 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 18 17:57 | 2026 May 16 13:51:58 | 29.6835 | 0.00122 | 22.2912 | 149.0494 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 17 17:57 | 2026 May 16 13:51:58 | 29.6835 | 0.00122 | 22.2912 | 149.0494 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 16 17:56 | 2026 May 16 13:51:58 | 29.6835 | 0.00122 | 22.2912 | 149.0494 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 15 17:57 | 2026 May 10 08:09:13 | 29.6838 | 0.00121 | 0.4818 | 96.3120 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 14 17:58 | 2026 May 10 08:09:13 | 29.6838 | 0.00121 | 0.4818 | 96.3120 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 13 17:58 | 2026 May 10 08:09:13 | 29.6838 | 0.00121 | 0.4818 | 96.3120 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 12 17:58 | 2026 May 10 08:09:13 | 29.6838 | 0.00121 | 0.4818 | 96.3120 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 11 17:56 | 2026 May 10 08:09:13 | 29.6838 | 0.00121 | 0.4818 | 96.3120 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 10 17:57 | 2026 May 10 08:09:13 | 29.6838 | 0.00121 | 0.4818 | 96.3120 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 09 17:57 | 2026 May 05 09:46:33 | 29.6834 | 0.00121 | 2.2139 | 54.5899 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 08 17:57 | 2026 May 05 09:46:33 | 29.6834 | 0.00121 | 2.2139 | 54.5899 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 07 17:58 | 2026 May 05 09:46:33 | 29.6834 | 0.00121 | 2.2139 | 54.5899 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 06 17:57 | 2026 May 05 09:46:33 | 29.6834 | 0.00121 | 2.2139 | 54.5899 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 05 17:57 | 2026 May 05 09:46:33 | 29.6834 | 0.00121 | 2.2139 | 54.5899 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 04 17:57 | 2026 Apr 30 13:08:18 | 29.6827 | 0.00122 | 3.9207 | 13.5051 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 03 17:57 | 2026 Apr 30 13:08:18 | 29.6827 | 0.00122 | 3.9207 | 13.5051 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 02 17:57 | 2026 Apr 30 13:08:18 | 29.6827 | 0.00122 | 3.9207 | 13.5051 | 211.0803 | 13.76304 | 8.743 |
| 2026 May 01 17:56 | 2026 Apr 30 13:08:18 | 29.6827 | 0.00122 | 3.9207 | 13.5051 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 30 17:56 | 2026 Apr 30 13:08:18 | 29.6827 | 0.00122 | 3.9207 | 13.5051 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 29 17:57 | 2026 Apr 24 07:25:29 | 29.6815 | 0.00122 | 6.1114 | 320.9931 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 28 17:56 | 2026 Apr 24 07:25:29 | 29.6815 | 0.00122 | 6.1114 | 320.9931 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 27 17:58 | 2026 Apr 24 07:25:29 | 29.6815 | 0.00122 | 6.1114 | 320.9931 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 26 17:58 | 2026 Apr 24 07:25:29 | 29.6815 | 0.00122 | 6.1114 | 320.9931 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 25 17:58 | 2026 Apr 24 07:25:29 | 29.6815 | 0.00122 | 6.1114 | 320.9931 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 24 17:59 | 2026 Apr 24 07:25:29 | 29.6815 | 0.00122 | 6.1114 | 320.9931 | 211.0803 | 13.76304 | 8.743 |
| 2026 Apr 23 17:57 | 2026 Apr 19 07:18:21 | 29.6809 | 0.00122 | 7.8692 | 278.9401 | 211.0803 | 13.76304 | 8.743 |