OTTER is a payload in SSO orbit, operated by US Naval Postgraduate School, launched 2025.
| Orbit class | SSO |
| Inclination | 97.4021° |
| Eccentricity | 0.0003748 |
| Period | 94.1 min |
| Apogee | 478 km |
| Perigee | 473 km |
| Mean motion | 15.30245753 rev/day |
| RAAN | 269.7798° |
| Arg of perigee | 225.1083° |
| Mean anomaly | 134.9854° |
| B* | 2.8780e-4 |
| Rev at epoch | 8,190 |
1 62623U 25009Q 26187.69479956 .00008347 00000-0 28780-3 0 99942 62623 97.4021 269.7798 0003748 225.1083 134.9854 15.30245753 81902{
"OBJECT_NAME": "OTTER",
"OBJECT_ID": "2025-009Q",
"EPOCH": "2026-07-06T16:40:30.682+00:00",
"MEAN_MOTION": 15.30245753,
"ECCENTRICITY": 0.0003748,
"INCLINATION": 97.4021,
"RA_OF_ASC_NODE": 269.7798,
"ARG_OF_PERICENTER": 225.1083,
"MEAN_ANOMALY": 134.9854,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 62623,
"REV_AT_EPOCH": 8190,
"BSTAR": 0.0002878,
"MEAN_MOTION_DOT": 0.00008347,
"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 | OTTER |
| 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 |