FLOCK 4H-28 is a payload in SSO orbit, operated by Planet Labs, Inc. (Planet), launched 2025.
Orbital data last updated 8 days ago. This may not reflect the current orbital state — not for operational use or collision avoidance.
| Orbit class | SSO |
| Inclination | 97.4183° |
| Eccentricity | 0.0003532 |
| Period | 94.8 min |
| Apogee | 509 km |
| Perigee | 504 km |
| Mean motion | 15.19776403 rev/day |
| RAAN | 253.3532° |
| Arg of perigee | 349.8489° |
| Mean anomaly | 10.2674° |
| B* | 2.7018e-4 |
| Rev at epoch | 3,223 |
1 66731U 25276BT 26180.15746192 .00005715 00000-0 27018-3 0 99962 66731 97.4183 253.3532 0003532 349.8489 10.2674 15.19776403 32231{
"OBJECT_NAME": "FLOCK 4H-28",
"OBJECT_ID": "2025-276BT",
"EPOCH": "2026-06-29T03:46:44.71+00:00",
"MEAN_MOTION": 15.19776403,
"ECCENTRICITY": 0.0003532,
"INCLINATION": 97.4183,
"RA_OF_ASC_NODE": 253.3532,
"ARG_OF_PERICENTER": 349.8489,
"MEAN_ANOMALY": 10.2674,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 66731,
"REV_AT_EPOCH": 3223,
"BSTAR": 0.00027018,
"MEAN_MOTION_DOT": 0.00005715,
"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 | FLOCK 4H-28 |
| 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 |