HAWK-3B, 48931
Orbit data source: Space-Track
HAWK-3B, 48931 is a payload satellite owned by HawkEye 360 (US) in SSO that was launched on Wed, 30 Jun 2021 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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48931 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
UTIAS-SFL
Mission
Operational Commercial Sigint
Bus & Motor
DEFIANT, Unknown motor
Mass
31 kg wet, 30 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 1.0 m
Radar Cross Section
0.348 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 HAWK-3B
1 48931U 21059BE 25355.47297024 .00025507 00000-0 37378-3 0 9997
2 48931 97.6691 172.2807 0005147 262.3515 97.7154 15.55539380250108Epoch: 2025-12-21T11:21Z
TLE epoch observation values (Epoch: 2025-12-21T11:21:04.628Z)
Latitude
-0.00005°
Longitude
-88.2735°
Altitude
404.186 km
Speed
7.668 km/s
True Right ascension
11h 29m 07s
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
03:56:50
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
401.003 km
Perigee altitude
394.028 km
Semi-major axis
6,775.652 km
Eccentricity
0.00051
Inclination
97.6691°
RAAN
172.2807°
Arg. of periapsis
262.3515°
True anomaly
97.77384°
Mean anomaly
97.7154°
Eccentric anomaly
97.74462°
Mean motion
3.8915 °/min
Orbital period
92.51 mins
BSTAR
0.00037378
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Other satellites on launch #59 in the year 2021 (2021-06-30 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.HAWK-3B Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-22 12:11:18.042Z | 181.79° SSW | 2025-12-22 12:13:18.042Z | 244.55° WSW | 40.573° | 2025-12-22 12:16:18.042Z | 339.528° N |
| 4 mins | 2025-12-23 00:58:18.042Z | 5.254° NNE | 2025-12-23 01:00:18.042Z | 242.94° WSW | 43.001° | 2025-12-23 01:02:18.042Z | 200.414° SSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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