Orbital elements of COSMOS 646
| Launched | 22 April 1974 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 7270 |
| 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 |
| 2024 May 05 17:52 | 2024 May 01 12:24:43 | 74.0212 | 0.00516 | 2.2166 | 152.6998 | 20.8208 | 12.55007 | – |
| 2024 May 04 17:52 | 2024 May 01 12:24:43 | 74.0212 | 0.00516 | 2.2166 | 152.6998 | 20.8208 | 12.55007 | – |
| 2024 May 03 17:52 | 2024 May 01 12:24:43 | 74.0212 | 0.00516 | 2.2166 | 152.6998 | 20.8208 | 12.55007 | – |
| 2024 May 02 17:52 | 2024 May 01 12:24:43 | 74.0212 | 0.00516 | 2.2166 | 152.6998 | 20.8208 | 12.55007 | – |
| 2024 May 01 17:54 | 2024 Apr 27 12:45:38 | 74.0209 | 0.00516 | 2.5732 | 158.8151 | 20.8208 | 12.55007 | – |
| 2024 Apr 30 17:57 | 2024 Apr 27 12:45:38 | 74.0209 | 0.00516 | 2.5732 | 158.8151 | 20.8208 | 12.55007 | – |
| 2024 Apr 29 17:52 | 2024 Apr 27 12:45:38 | 74.0209 | 0.00516 | 2.5732 | 158.8151 | 20.8208 | 12.55007 | – |
| 2024 Apr 28 17:52 | 2024 Apr 27 12:45:38 | 74.0209 | 0.00516 | 2.5732 | 158.8151 | 20.8208 | 12.55007 | – |
| 2024 Apr 27 17:58 | 2024 Apr 27 12:45:38 | 74.0209 | 0.00516 | 2.5732 | 158.8151 | 20.8208 | 12.55007 | – |
| 2024 Apr 26 17:54 | 2024 Apr 21 22:16:29 | 74.0201 | 0.00517 | 3.0746 | 167.3709 | 20.8208 | 12.55007 | – |
| 2024 Apr 25 17:55 | 2024 Apr 21 22:16:29 | 74.0201 | 0.00517 | 3.0746 | 167.3709 | 20.8208 | 12.55007 | – |
| 2024 Apr 24 17:53 | 2024 Apr 21 22:16:29 | 74.0201 | 0.00517 | 3.0746 | 167.3709 | 20.8208 | 12.55007 | – |
| 2024 Apr 23 17:53 | 2024 Apr 21 22:16:29 | 74.0201 | 0.00517 | 3.0746 | 167.3709 | 20.8208 | 12.55007 | – |
| 2024 Apr 22 17:52 | 2024 Apr 21 22:16:29 | 74.0201 | 0.00517 | 3.0746 | 167.3709 | 20.8208 | 12.55007 | – |
| 2024 Apr 21 17:53 | 2024 Apr 15 20:52:49 | 74.0190 | 0.00518 | 3.6167 | 176.5939 | 20.8208 | 12.55007 | – |
| 2024 Apr 20 17:52 | 2024 Apr 15 20:52:49 | 74.0190 | 0.00518 | 3.6167 | 176.5939 | 20.8208 | 12.55007 | – |
| 2024 Apr 19 17:53 | 2024 Apr 15 20:52:49 | 74.0190 | 0.00518 | 3.6167 | 176.5939 | 20.8208 | 12.55007 | – |
| 2024 Apr 18 17:57 | 2024 Apr 15 20:52:49 | 74.0190 | 0.00518 | 3.6167 | 176.5939 | 20.8208 | 12.55007 | – |
| 2024 Apr 17 17:53 | 2024 Apr 15 20:52:49 | 74.0190 | 0.00518 | 3.6167 | 176.5939 | 20.8208 | 12.55007 | – |
| 2024 Apr 16 17:53 | 2024 Apr 15 20:52:49 | 74.0190 | 0.00518 | 3.6167 | 176.5939 | 20.8208 | 12.55007 | – |
| 2024 Apr 15 17:54 | 2024 Apr 09 23:17:35 | 74.0176 | 0.00519 | 4.1446 | 185.5526 | 20.8208 | 12.55007 | – |
| 2024 Apr 14 17:53 | 2024 Apr 09 23:17:35 | 74.0176 | 0.00519 | 4.1446 | 185.5526 | 20.8208 | 12.55007 | – |
| 2024 Apr 13 17:53 | 2024 Apr 09 23:17:35 | 74.0176 | 0.00519 | 4.1446 | 185.5526 | 20.8208 | 12.55007 | – |
| 2024 Apr 12 17:53 | 2024 Apr 09 23:17:35 | 74.0176 | 0.00519 | 4.1446 | 185.5526 | 20.8208 | 12.55007 | – |
| 2024 Apr 11 17:54 | 2024 Apr 09 23:17:35 | 74.0176 | 0.00519 | 4.1446 | 185.5526 | 20.8208 | 12.55007 | – |
| 2024 Apr 10 17:56 | 2024 Apr 09 23:17:35 | 74.0176 | 0.00519 | 4.1446 | 185.5526 | 20.8208 | 12.55007 | – |
| 2024 Apr 09 17:56 | 2024 Apr 04 22:47:56 | 74.0165 | 0.00520 | 4.5940 | 193.1576 | 20.8208 | 12.55007 | – |
| 2024 Apr 08 17:55 | 2024 Apr 04 22:47:56 | 74.0165 | 0.00520 | 4.5940 | 193.1576 | 20.8208 | 12.55007 | – |