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BLACKJACK ACES-2, 56955

Orbit data source: Space-Track

BLACKJACK ACES-2, 56955 is a payload satellite owned by DARPA (US) in SSO that was launched on Mon, 12 Jun 2023 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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Iframe URL

https://www.satcat.com/sats-embedded/56955?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

56955, 2023-084Z

Orbit

SSO

Country

Related business

Defense Advanced Research Projects Agency (US)

Manufacturer

BLCAN/LMSS

Mission

Operational Defense Communications

Bus & Motor

X-SAT, Unknown motor

Mass

~200 kg wet, ~200 kg dry

Launch date (UTC)

2023-06-12 (3 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 3.6 m

Radar Cross Section

0.875 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 BLACKJACK ACES-2
1 56955U 23084Z   26016.63241927  .00007006  00000-0  31749-3 0  9996
2 56955  97.5977 150.7840 0007139 155.5220 204.6355 15.21153943144166

Epoch: 2026-01-16T15:10Z

TLE epoch observation values (Epoch: 2026-01-16T15:10:41.024Z)

Latitude

-0.0001°

Longitude

167.04417°

Altitude

509.912 km

Speed

7.606 km/s

True Right ascension

10h 03m 08s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

07:17:44

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

504.241 km

Perigee altitude

494.422 km

Semi-major axis

6,877.468 km

Eccentricity

0.00071

Inclination

97.5977°

RAAN

150.784°

Arg. of periapsis

155.522°

True anomaly

204.60143°

Mean anomaly

204.6355°

Eccentric anomaly

204.61846°

Mean motion

3.8054 °/min

Orbital period

94.6 mins

BSTAR

0.00031749

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Other satellites on launch #84 in the year 2023 (2023-06-12 UTC)

OBJECT BR, 56989 (Decayed)

FOSSASAT2E17 (FEROX), 56935 (Decayed)

ION SCV-011, 56957

AAC-HSI-SAT2, 56995

OBJECT K, 56941 (Decayed)

LEMUR 2 EMBRIONOVIS, 56970

RUNNER-1 (TYVAK-1005), 56953

SPACEBEE-173, 56978 (Decayed)

OUTPOST MISSION 1, 56226

MISR-B-2, 56940 (Decayed)

AAC-AIS-SAT2, 56996

ICEYE-X30, 56947

GHOST-3, 56958

FOSSASAT2E14 (FEROX), 56936 (Decayed)

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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BLACKJACK ACES-2 Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
6 mins	2026-01-17 08:40:24.654Z	155.454° SSE	2026-01-17 08:43:24.654Z	71.639° E	42.103°	2026-01-17 08:46:24.654Z	355.587° N
5 mins	2026-01-17 21:45:24.654Z	9.345° NNE	2026-01-17 21:47:24.654Z	214.163° SW	43.995°	2026-01-17 21:50:24.654Z	195.351° SSW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out BLACKJACK ACES-2, 56955 on other resources

View BLACKJACK ACES-2, 56955 on NASA - NSSDCA Website

View BLACKJACK ACES-2, 56955 on Heavens-Above

View BLACKJACK ACES-2, 56955 on Keep Track

View BLACKJACK ACES-2, 56955 on Celestrak

View BLACKJACK ACES-2, 56955 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

BLACKJACK ACES-2, 56955

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-01-16T15:10:41.024Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #84 in the year 2023 (2023-06-12 UTC)

BLACKJACK ACES-2 Visibility forecast

Co-orbital & Co-planar RSOs

Check out BLACKJACK ACES-2, 56955 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago