LEMUR-2-MONSON is a payload in SSO orbit, operated by Spire, launched 2017.
| Orbit class | SSO |
| Inclination | 97.4095° |
| Eccentricity | 0.0005141 |
| Period | 94.2 min |
| Apogee | 484 km |
| Perigee | 477 km |
| Mean motion | 15.28600277 rev/day |
| RAAN | 8.2234° |
| Arg of perigee | 284.6835° |
| Mean anomaly | 75.3834° |
| B* | 4.1953e-4 |
| Rev at epoch | 49,115 |
1 42839U 17042Q 26187.73806894 .00011607 00000-0 41953-3 0 99992 42839 97.4095 8.2234 0005141 284.6835 75.3834 15.28600277491156{
"OBJECT_NAME": "LEMUR-2-MONSON",
"OBJECT_ID": "2017-042Q",
"EPOCH": "2026-07-06T17:42:49.156+00:00",
"MEAN_MOTION": 15.28600277,
"ECCENTRICITY": 0.0005141,
"INCLINATION": 97.4095,
"RA_OF_ASC_NODE": 8.2234,
"ARG_OF_PERICENTER": 284.6835,
"MEAN_ANOMALY": 75.3834,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 42839,
"REV_AT_EPOCH": 49115,
"BSTAR": 0.00041953,
"MEAN_MOTION_DOT": 0.00011607,
"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 | LEMUR-2-MONSON |
| 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 |