▸Orbital parameters

Orbit class	LEO
Inclination	81.3041°
Eccentricity	0.0010583
Period	104.0 min
Apogee	958 km
Perigee	942 km
Mean motion	13.83961004 rev/day
RAAN	352.4061°
Arg of perigee	135.0780°
Mean anomaly	225.1235°
B*	1.5691e-4
Rev at epoch	4,143

▸Two-line element set (TLE)

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

1 65566U 25203B 26187.93262830 .00000186 00000-0 15691-3 0 9997

2 65566 81.3041 352.4061 0010583 135.0780 225.1235 13.83961004 41436

▸ source OMM (JSON)

{
  "OBJECT_NAME": "PRAETORIAN SDA_603",
  "OBJECT_ID": "2025-203B",
  "EPOCH": "2026-07-06T22:22:59.085+00:00",
  "MEAN_MOTION": 13.83961004,
  "ECCENTRICITY": 0.0010583,
  "INCLINATION": 81.3041,
  "RA_OF_ASC_NODE": 352.4061,
  "ARG_OF_PERICENTER": 135.078,
  "MEAN_ANOMALY": 225.1235,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 65566,
  "REV_AT_EPOCH": 4143,
  "BSTAR": 0.00015691,
  "MEAN_MOTION_DOT": 0.00000186,
  "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	PRAETORIAN SDA_603
Operator	Space Development AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Sep 10, 2025HIGHvia 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/65566

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