▸Orbital parameters

Orbit class	LEO
Inclination	81.0008°
Eccentricity	0.0007380
Period	99.2 min
Apogee	728 km
Perigee	717 km
Mean motion	14.50918933 rev/day
RAAN	339.1794°
Arg of perigee	272.1444°
Mean anomaly	87.8904°
B*	1.9557e-4
Rev at epoch	14,430

▸Two-line element set (TLE)

EPOCH Jul 6, 2026SOURCE CelesTrakDERIVED currentUPDATED Jul 7, 2026

1 57757U 23133B 26187.82346780 .00000785 00000-0 19557-3 0 9995

2 57757 81.0008 339.1794 0007380 272.1444 87.8904 14.50918933144309

▸ source OMM (JSON)

{
  "OBJECT_NAME": "BB4",
  "OBJECT_ID": "2023-133B",
  "EPOCH": "2026-07-06T19:45:47.618+00:00",
  "MEAN_MOTION": 14.50918933,
  "ECCENTRICITY": 0.000738,
  "INCLINATION": 81.0008,
  "RA_OF_ASC_NODE": 339.1794,
  "ARG_OF_PERICENTER": 272.1444,
  "MEAN_ANOMALY": 87.8904,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 57757,
  "REV_AT_EPOCH": 14430,
  "BSTAR": 0.00019557,
  "MEAN_MOTION_DOT": 0.00000785,
  "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.

▸Satellite metadata

Name	BB4
Operator	Space Development AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Sep 2, 2023HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	800HIGHvia GCAT — Jonathan McDowell's General Catalog
Mission purpose	—
Object class	PAYLOADHIGH

▸Data quality

Score85 / 100

Claims7

Sources1

TLEavailable

▸Sources

GCAT — Jonathan McDowell's General CatalogCC BY 4.0planet4589.org

▸Actions

GET /api/v1/satellites/57757

//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.