CS1 is a payload in SSO orbit, operated by Cesium Astro, Inc., launched 2021.
| Orbit class | SSO |
| Inclination | 97.3750° |
| Eccentricity | 0.0011439 |
| Period | 93.8 min |
| Apogee | 468 km |
| Perigee | 452 km |
| Mean motion | 15.35310002 rev/day |
| RAAN | 251.4398° |
| Arg of perigee | 15.8889° |
| Mean anomaly | 344.2711° |
| B* | 3.1074e-4 |
| Rev at epoch | 26,348 |
1 49261U 21088B 26188.15624169 .00010599 00000-0 31074-3 0 99922 49261 97.3750 251.4398 0011439 15.8889 344.2711 15.35310002263489{
"OBJECT_NAME": "CS1",
"OBJECT_ID": "2021-088B",
"EPOCH": "2026-07-07T03:44:59.282+00:00",
"MEAN_MOTION": 15.35310002,
"ECCENTRICITY": 0.0011439,
"INCLINATION": 97.375,
"RA_OF_ASC_NODE": 251.4398,
"ARG_OF_PERICENTER": 15.8889,
"MEAN_ANOMALY": 344.2711,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 49261,
"REV_AT_EPOCH": 26348,
"BSTAR": 0.00031074,
"MEAN_MOTION_DOT": 0.00010599,
"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 | CS1 |
| Operator | |
| Country | United States |
| 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 |