▸Orbital parameters

Orbit class	LEO
Inclination	81.2988°
Eccentricity	0.0005000
Period	103.9 min
Apogee	949 km
Perigee	942 km
Mean motion	13.85306428 rev/day
RAAN	193.4347°
Arg of perigee	135.1119°
Mean anomaly	225.0443°
B*	1.1013e-4
Rev at epoch	3,652

▸Two-line element set (TLE)

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

1 65991U 25230T 26187.70539654 .00000137 00000-0 11013-3 0 9995

2 65991 81.2988 193.4347 0005000 135.1119 225.0443 13.85306428 36521

▸ source OMM (JSON)

{
  "OBJECT_NAME": "SDA_1681",
  "OBJECT_ID": "2025-230T",
  "EPOCH": "2026-07-06T16:55:46.261+00:00",
  "MEAN_MOTION": 13.85306428,
  "ECCENTRICITY": 0.0005,
  "INCLINATION": 81.2988,
  "RA_OF_ASC_NODE": 193.4347,
  "ARG_OF_PERICENTER": 135.1119,
  "MEAN_ANOMALY": 225.0443,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 65991,
  "REV_AT_EPOCH": 3652,
  "BSTAR": 0.00011013,
  "MEAN_MOTION_DOT": 0.00000137,
  "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	SDA_1681
Operator	Space Development AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Oct 15, 2025HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	400HIGHvia 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/65991

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