COSMOS 2539 is a payload in GEO orbit, operated by Aerospace Defence Forces / Voentelekom, launched 2019.
| Orbit class | GEO |
| Inclination | 0.0341° |
| Eccentricity | 0.0000442 |
| Period | 1436.0 min |
| Apogee | 35,788 km |
| Perigee | 35,784 km |
| Mean motion | 1.00275305 rev/day |
| RAAN | 101.5693° |
| Arg of perigee | 85.7934° |
| Mean anomaly | 291.1774° |
| B* | 0.0000e+0 |
| Rev at epoch | 2,542 |
1 44457U 19048A 26187.50570138 .00000096 00000-0 00000-0 0 99942 44457 0.0341 101.5693 0000442 85.7934 291.1774 1.00275305 25422{
"OBJECT_NAME": "COSMOS 2539",
"OBJECT_ID": "2019-048A",
"EPOCH": "2026-07-06T12:08:12.599+00:00",
"MEAN_MOTION": 1.00275305,
"ECCENTRICITY": 0.0000442,
"INCLINATION": 0.0341,
"RA_OF_ASC_NODE": 101.5693,
"ARG_OF_PERICENTER": 85.7934,
"MEAN_ANOMALY": 291.1774,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 44457,
"REV_AT_EPOCH": 2542,
"BSTAR": 0,
"MEAN_MOTION_DOT": 9.6e-7,
"MEAN_MOTION_DDOT": 0
}Reconstructed from CelesTrak OMM mean-elements (element-set number is a placeholder). TLE/OMM data is approximate. Not for operational use or collision avoidance.
| Name | COSMOS 2539 |
| Operator | Aerospace Defence Forces / VoentelekomHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | |
| Launch date | |
| Launch mass (kg) | 3162 |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |