SENTINEL-3B is a payload in SSO orbit, operated by European Commission DG-GROW Directorate I/2, Copernicus Unit / European Space Agency, launched 2018.
| Orbit class | SSO |
| Inclination | 98.6239° |
| Eccentricity | 0.0000963 |
| Period | 100.9 min |
| Apogee | 803 km |
| Perigee | 802 km |
| Mean motion | 14.26740486 rev/day |
| RAAN | 255.4214° |
| Arg of perigee | 118.9874° |
| Mean anomaly | 241.1403° |
| B* | 5.1893e-5 |
| Rev at epoch | 42,697 |
1 43437U 18039A 26188.17671324 .00000082 00000-0 51893-4 0 99982 43437 98.6239 255.4214 0000963 118.9874 241.1403 14.26740486426974{
"OBJECT_NAME": "SENTINEL-3B",
"OBJECT_ID": "2018-039A",
"EPOCH": "2026-07-07T04:14:28.024+00:00",
"MEAN_MOTION": 14.26740486,
"ECCENTRICITY": 0.0000963,
"INCLINATION": 98.6239,
"RA_OF_ASC_NODE": 255.4214,
"ARG_OF_PERICENTER": 118.9874,
"MEAN_ANOMALY": 241.1403,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 43437,
"REV_AT_EPOCH": 42697,
"BSTAR": 0.000051893,
"MEAN_MOTION_DOT": 8.2e-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 | SENTINEL-3B |
| Operator | European Commission DG-GROW Directorate I/2, Copernicus Unit / European Space AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | European Union |
| Launch date | |
| Launch mass (kg) |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |