Orbital elements of HTV-X1
| Launched | 25 October 2025 |
| Flight ended | – |
| Launch site | Tanegashima Space Center, Japan |
| Owner | Japan |
| NORAD ID | 66174 |
| 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 Mar 09 18:56 | 2026 Mar 08 17:44:01 | 51.6319 | 0.00081 | 5.1371 | 171.0721 | 189.0412 | 15.48531 | – |
| 2026 Mar 08 18:57 | 2026 Mar 07 18:30:03 | 51.6320 | 0.00081 | 5.4562 | 167.9196 | 189.0412 | 15.48531 | – |
| 2026 Mar 07 18:57 | 2026 Mar 07 12:18:20 | 51.6318 | 0.00081 | 5.5413 | 167.0679 | 189.0412 | 15.48531 | – |
| 2026 Mar 06 18:56 | 2026 Mar 06 13:04:21 | 51.6317 | 0.00081 | 5.8603 | 163.3368 | 189.0412 | 15.48531 | – |
| 2026 Mar 05 18:56 | 2026 Mar 05 13:50:21 | 51.6316 | 0.00082 | 6.1794 | 159.9772 | 189.0412 | 15.48531 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 13:03:23 | 51.6315 | 0.00082 | 6.5197 | 156.3781 | 189.0412 | 15.48531 | – |
| 2026 Mar 03 18:56 | 2026 Mar 03 10:43:29 | 51.6317 | 0.00082 | 6.8813 | 152.5429 | 189.0412 | 15.48531 | – |
| 2026 Mar 02 18:57 | 2026 Mar 02 13:02:22 | 51.6317 | 0.00082 | 7.1791 | 149.4104 | 189.0412 | 15.48531 | – |
| 2026 Mar 01 18:57 | 2026 Mar 01 10:42:24 | 51.6323 | 0.00083 | 7.5407 | 145.6657 | 189.0412 | 15.48531 | – |
| 2026 Feb 28 18:56 | 2026 Feb 28 09:55:22 | 51.6325 | 0.00083 | 7.8810 | 142.1568 | 189.0412 | 15.48531 | – |
| 2026 Feb 27 19:05 | 2026 Feb 27 06:02:26 | 51.6322 | 0.00083 | 8.2638 | 138.2013 | 189.0412 | 15.48531 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 13:00:04 | 51.6322 | 0.00083 | 8.4977 | 135.8715 | 189.0412 | 15.48531 | – |