CHECKMATE 4, 56164
Orbit data source: Space-Track
CHECKMATE 4, 56164 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). Payloads include a variety of satellites, spacecraft, and rockets 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.
Focus sentinelFocus sentinel
56164 intel report (Beta)
CHECKMATE 4 details
| Identifier | |
| Orbit | LEO |
| Last TLE update | 18 hours ago |
| Origin | |
| 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 | Payload Rocket body Debris |
| Shape & HBR | Box + 1 Pan, 2 m |
| Radar Cross Section | 0.945 m², Large (>1 m²) |
Expand to show TLE details & history
TLE from 18 hours ago
0 CHECKMATE 4
1 56164U 23050C 25014.87815600 .00000093 00000-0 73364-4 0 9998
2 56164 80.9997 208.7948 0005091 291.7282 68.3331 13.84717670 90401Epoch: 2025-01-14T21:04Z
Definitive object data (Epoch: 2025-01-14T21:04:32.678Z)
| Latitude | -0.00009° |
| Longitude | 138.08009° |
| Altitude | 948.682 km |
| Speed | 7.378 km/s |
| True Right ascension | 13h 55m 10s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | 26.89049° |
| Longitude | -47.22505° |
| Altitude | 953.153 km |
| Speed | 7.376 km/s |
| Apparent Right ascension | 02h 31m 54s |
| Apparent Declination | -4° 02' 03" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 15:49:59 |
| Azimuth | 31.248° NE |
| Elevation | -50.018° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 948.149 km |
| Perigee altitude | 940.693 km |
| Semi-major axis | 7,322.558 km |
| Eccentricity | 0.0005091 |
| Inclination | 80.9997° |
| RAAN | 208.7948° |
| Arg. of periapsis | 291.7282° |
| True anomaly | 68.38733° |
| Mean anomaly | 68.3331° |
| Eccentric anomaly | 68.36021° |
| Mean motion | 3.46377 °/min |
| BSTAR | 0.000073364 |
| Orbital period | 103.93 mins |
Loading maneuver chart data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #50 in the year 2023 (2023-04-02 UTC)
| CHECKMATE 8, 56162 |
| CHECKMATE 5, 56163 |
| CHECKMATE 4, 56164 |
| CHECKMATE 6, 56165 |
| CHECKMATE 7, 56166 |
| CHECKMATE 2, 56167 |
| CHECKMATE 1, 56168 |
| CHECKMATE 3, 56169 |
| BB 2, 56170 |
| BB 1, 56171 |
CHECKMATE 4 Visibility forecast
Observer location: undefined°, undefined
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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-01-15 23:40:10.924Z | 12.396° NNE | 2025-01-15 23:45:10.924Z | 78.049° E | 29.085° | 2025-01-15 23:50:10.924Z | 135.467° SSE |
| 9 mins | 2025-01-16 01:26:10.924Z | 321.645° NNW | 2025-01-16 01:30:10.924Z | 263.153° W | 28.889° | 2025-01-16 01:35:10.924Z | 207.857° SW |
| 9 mins | 2025-01-16 13:05:10.924Z | 164.88° S | 2025-01-16 13:09:10.924Z | 94.224° ESE | 39.726° | 2025-01-16 13:14:10.924Z | 20.622° NNE |
| 7 mins | 2025-01-16 14:51:10.924Z | 252.818° W | 2025-01-16 14:54:10.924Z | 286.838° WNW | 19.664° | 2025-01-16 14:58:10.924Z | 333.436° NNW |
Authenticating...
Click to sort rows by NORAD ID header in ascending order | Click to sort rows by Common name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|