▸Orbital parameters

Orbit class	SSO
Inclination	97.6231°
Eccentricity	0.0001038
Period	94.8 min
Apogee	511 km
Perigee	509 km
Mean motion	15.18665792 rev/day
RAAN	323.3739°
Arg of perigee	143.4011°
Mean anomaly	216.7293°
B*	2.3335e-4
Rev at epoch	17,017

▸Two-line element set (TLE)

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

1 56955U 23084Z 26187.94415058 .00004766 00000-0 23335-3 0 9999

2 56955 97.6231 323.3739 0001038 143.4011 216.7293 15.18665792170172

▸ source OMM (JSON)

{
  "OBJECT_NAME": "BLACKJACK ACES-2",
  "OBJECT_ID": "2023-084Z",
  "EPOCH": "2026-07-06T22:39:34.61+00:00",
  "MEAN_MOTION": 15.18665792,
  "ECCENTRICITY": 0.0001038,
  "INCLINATION": 97.6231,
  "RA_OF_ASC_NODE": 323.3739,
  "ARG_OF_PERICENTER": 143.4011,
  "MEAN_ANOMALY": 216.7293,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 56955,
  "REV_AT_EPOCH": 17017,
  "BSTAR": 0.00023335,
  "MEAN_MOTION_DOT": 0.00004766,
  "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	BLACKJACK ACES-2
Operator	Defense Advanced Research Projects AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog Defense Advanced Research Projects AgencyMEDIUMvia Wikidata
Country	United StatesMEDIUMvia Wikidata
Launch date	Jun 12, 2023HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	200HIGH

▸Data quality

Score90 / 100

Claims9

Sources2

TLEavailable

▸Sources

GCAT — Jonathan McDowell's General CatalogCC BY 4.0planet4589.org
WikidataCC0 1.0query.wikidata.org

▸Actions

GET /api/v1/satellites/56955

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