▸Orbital parameters

Orbit class	LEO
Inclination	64.7579°
Eccentricity	0.0081232
Period	94.9 min
Apogee	572 km
Perigee	460 km
Mean motion	15.16768824 rev/day
RAAN	109.7245°
Arg of perigee	39.3666°
Mean anomaly	321.3324°
B*	5.8763e-4
Rev at epoch	11,861

▸Two-line element set (TLE)

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

1 40974U 15058L 26187.94943844 .00012426 00000-0 58763-3 0 9999

2 40974 64.7579 109.7245 0081232 39.3666 321.3324 15.16768824118614

▸ source OMM (JSON)

{
  "OBJECT_NAME": "BISONSAT",
  "OBJECT_ID": "2015-058L",
  "EPOCH": "2026-07-06T22:47:11.481+00:00",
  "MEAN_MOTION": 15.16768824,
  "ECCENTRICITY": 0.0081232,
  "INCLINATION": 64.7579,
  "RA_OF_ASC_NODE": 109.7245,
  "ARG_OF_PERICENTER": 39.3666,
  "MEAN_ANOMALY": 321.3324,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 40974,
  "REV_AT_EPOCH": 11861,
  "BSTAR": 0.00058763,
  "MEAN_MOTION_DOT": 0.00012426,
  "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	BISONSAT
Operator	SRI InternationalHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Oct 8, 2015HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	2HIGHvia 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/40974

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