CHECKMATE 2, 56167
Orbit data source: Space-Track
CHECKMATE 2, 56167 is a payload satellite owned by SDA (US) in LEO that was launched on Sun, 02 Apr 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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56167 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
York Space Sys
Mission
Operational Defense Communications
Bus & Motor
S-CLASS, Unknown motor
Mass
~300 kg wet, ~300 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 1.0 m
Radar Cross Section
0.945 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 CHECKMATE 2
1 56167U 23050F 26171.16685899 .00000111 00000-0 88030-4 0 9990
2 56167 81.0048 68.8430 0006358 315.5089 44.5556 13.85161536162524Epoch: 2026-06-20T04:00Z
TLE epoch observation values (Epoch: 2026-06-20T04:00:16.616Z)
Latitude
-0.00004°
Longitude
100.38838°
Altitude
945.176 km
Speed
7.381 km/s
True Right ascension
04h 35m 22s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
21:40:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
947.51 km
Perigee altitude
938.201 km
Semi-major axis
7,320.992 km
Eccentricity
0.00064
Inclination
81.0048°
RAAN
68.843°
Arg. of periapsis
315.5089°
True anomaly
44.60675°
Mean anomaly
44.5556°
Eccentric anomaly
44.58117°
Mean motion
3.46488 °/min
Orbital period
103.9 mins
BSTAR
0.00008803
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Other satellites on launch #50 in the year 2023 (2023-04-02 UTC)
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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.CHECKMATE 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-06-22 16:47:24.990Z | 144.506° SSE | 2026-06-22 16:52:24.990Z | 86.128° E | 25.506° | 2026-06-22 16:56:24.990Z | 37.573° NE |
| 10 mins | 2026-06-22 18:32:24.990Z | 222.386° SW | 2026-06-22 18:37:24.990Z | 295.375° NW | 32.284° | 2026-06-22 18:42:24.990Z | 353.581° N |
| 9 mins | 2026-06-23 03:40:24.990Z | 20.951° NNE | 2026-06-23 03:44:24.990Z | 72.271° E | 25.12° | 2026-06-23 03:49:24.990Z | 128.099° SE |
| 9 mins | 2026-06-23 05:25:24.990Z | 328.226° NNW | 2026-06-23 05:29:24.990Z | 267.941° W | 33.491° | 2026-06-23 05:34:24.990Z | 202.468° SSW |
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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