▸Orbital parameters

Orbit class	LEO
Inclination	80.9993°
Eccentricity	0.0013678
Period	103.8 min
Apogee	947 km
Perigee	927 km
Mean motion	13.87622038 rev/day
RAAN	52.0531°
Arg of perigee	259.7011°
Mean anomaly	100.2605°
B*	1.4459e-5
Rev at epoch	16,486

▸Two-line element set (TLE)

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

1 56166U 23050E 26188.01397639 .00000028 00000-0 14459-4 0 9994

2 56166 80.9993 52.0531 0013678 259.7011 100.2605 13.87622038164869

▸ source OMM (JSON)

{
  "OBJECT_NAME": "CHECKMATE 7",
  "OBJECT_ID": "2023-050E",
  "EPOCH": "2026-07-07T00:20:07.56+00:00",
  "MEAN_MOTION": 13.87622038,
  "ECCENTRICITY": 0.0013678,
  "INCLINATION": 80.9993,
  "RA_OF_ASC_NODE": 52.0531,
  "ARG_OF_PERICENTER": 259.7011,
  "MEAN_ANOMALY": 100.2605,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 56166,
  "REV_AT_EPOCH": 16486,
  "BSTAR": 0.000014459,
  "MEAN_MOTION_DOT": 2.8e-7,
  "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	CHECKMATE 7
Operator	Space Development AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Apr 2, 2023HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	300HIGHvia 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/56166

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