Orbital elements of HELIOS 1B
| Launched | 2 December 1999 |
| Flight ended | – |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | France |
| NORAD ID | 25977 |
| 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 02:46:12 | 98.1809 | 0.00005 | 10.0116 | 62.6556 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 14 17:56 | 2025 Sep 14 04:09:24 | 98.1811 | 0.00005 | 9.9470 | 57.3380 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 12 17:57 | 2025 Sep 11 14:46:38 | 98.1814 | 0.00006 | 9.7714 | 45.9370 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 11 17:57 | 2025 Sep 11 03:28:14 | 98.1815 | 0.00006 | 9.7391 | 45.1131 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 10 17:56 | 2025 Sep 10 03:14:30 | 98.1816 | 0.00007 | 9.6698 | 41.6577 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 08 17:57 | 2025 Sep 08 06:00:52 | 98.1818 | 0.00008 | 9.5405 | 42.6224 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 07 17:56 | 2025 Sep 07 05:47:07 | 98.1821 | 0.00009 | 9.4712 | 40.9984 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 06 20:41 | 2025 Sep 06 05:33:23 | 98.1823 | 0.00009 | 9.4019 | 39.1526 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 03 17:57 | 2025 Sep 03 03:15:12 | 98.1826 | 0.00011 | 9.1894 | 39.1923 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 02 17:56 | 2025 Sep 01 17:19:56 | 98.1826 | 0.00012 | 9.0924 | 39.7726 | 297.4708 | 14.86749 | 6.243 |
| 2025 Sep 01 17:56 | 2025 Sep 01 06:01:31 | 98.1827 | 0.00012 | 9.0600 | 40.9122 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 31 17:56 | 2025 Aug 31 05:47:44 | 98.1828 | 0.00013 | 8.9907 | 40.8727 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 30 17:56 | 2025 Aug 29 23:06:17 | 98.1835 | 0.00014 | 8.9029 | 40.0665 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 29 17:56 | 2025 Aug 29 05:20:10 | 98.1836 | 0.00014 | 8.8521 | 41.2272 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 28 17:57 | 2025 Aug 27 22:38:42 | 98.1839 | 0.00015 | 8.7643 | 42.4563 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 27 17:56 | 2025 Aug 27 03:15:40 | 98.1840 | 0.00015 | 8.7089 | 43.7951 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 26 17:56 | 2025 Aug 25 17:20:21 | 98.1842 | 0.00016 | 8.6119 | 44.9624 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 25 17:56 | 2025 Aug 24 17:06:33 | 98.1844 | 0.00016 | 8.5426 | 46.1852 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 24 17:56 | 2025 Aug 23 16:52:44 | 98.1846 | 0.00017 | 8.4733 | 47.6576 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 23 17:56 | 2025 Aug 22 06:57:24 | 98.1849 | 0.00018 | 8.3762 | 48.9894 | 297.4708 | 14.86749 | 6.243 |
| 2025 Aug 22 17:56 | 2025 Aug 20 22:39:00 | 98.1852 | 0.00018 | 8.2838 | 50.5508 | 297.4708 | 14.86749 | 6.243 |