SL-4 R/B is a rocket body in SSO orbit, operated by Russian Strategic Rocket Forces, launched 2026.
| Orbit class | SSO |
| Inclination | 98.2758° |
| Eccentricity | 0.0063532 |
| Period | 94.6 min |
| Apogee | 541 km |
| Perigee | 454 km |
| Mean motion | 15.22730755 rev/day |
| RAAN | 341.2800° |
| Arg of perigee | 160.2820° |
| Mean anomaly | 200.0892° |
| B* | 1.7437e-4 |
| Rev at epoch | 1,233 |
1 68753U 26083A 26187.94173720 .00004210 00000-0 17437-3 0 99972 68753 98.2758 341.2800 0063532 160.2820 200.0892 15.22730755 12333{
"OBJECT_NAME": "SL-4 R/B",
"OBJECT_ID": "2026-083A",
"EPOCH": "2026-07-06T22:36:06.094+00:00",
"MEAN_MOTION": 15.22730755,
"ECCENTRICITY": 0.0063532,
"INCLINATION": 98.2758,
"RA_OF_ASC_NODE": 341.28,
"ARG_OF_PERICENTER": 160.282,
"MEAN_ANOMALY": 200.0892,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 68753,
"REV_AT_EPOCH": 1233,
"BSTAR": 0.00017437,
"MEAN_MOTION_DOT": 0.0000421,
"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 | SL-4 R/B |
| Operator | |
| Country | Russia |
| Launch date | |
| Launch mass (kg) | |
| Mission purpose | — |
| Object class |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Orbital regime |
| Status |