BB4, 57757
Orbit data source: Space-Track
BB4, 57757 is a payload satellite owned by SDA (US) in LEO that was launched on Sat, 02 Sep 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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57757 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SPX/LEIDOS
Mission
Operational Defense Early Warn
Bus & Motor
STARSHIELD?, Unknown motor
Mass
~800 kg wet, ~800 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 4.5 m
Radar Cross Section
12.397 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 days ago
TLE from 6 days ago
0 BB4
1 57757U 23133B 26167.32247935 .00000421 00000-0 13389-3 0 9994
2 57757 80.9990 0.8776 0008043 340.3813 19.7062 14.38450903141348Epoch: 2026-06-16T07:44Z
TLE epoch observation values (Epoch: 2026-06-16T07:44:22.215Z)
Latitude
-0.00005°
Longitude
-19.81114°
Altitude
761.143 km
Speed
7.477 km/s
True Right ascension
00h 03m 30s
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
00:50:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
766.511 km
Perigee altitude
755.028 km
Semi-major axis
7,138.907 km
Eccentricity
0.0008
Inclination
80.999°
RAAN
0.8776°
Arg. of periapsis
340.3813°
True anomaly
19.73731°
Mean anomaly
19.7062°
Eccentric anomaly
19.72175°
Mean motion
3.59829 °/min
Orbital period
100.05 mins
BSTAR
0.00013389
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Other satellites on launch #133 in the year 2023 (2023-09-02 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.BB4 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-22 14:07:23.151Z | 239.994° WSW | 2026-06-22 14:11:23.151Z | 291.792° WNW | 20.456° | 2026-06-22 14:14:23.151Z | 333.108° NNW |
| 6 mins | 2026-06-22 22:55:23.151Z | 31.94° NE | 2026-06-22 22:58:23.151Z | 78.339° E | 21.492° | 2026-06-22 23:01:23.151Z | 118.044° SE |
| 7 mins | 2026-06-23 00:36:23.151Z | 320.79° NNW | 2026-06-23 00:39:23.151Z | 260.627° W | 31.549° | 2026-06-23 00:43:23.151Z | 203.154° SW |
| 5 mins | 2026-06-23 11:50:23.151Z | 117.401° SE | 2026-06-23 11:52:23.151Z | 87.087° E | 19.837° | 2026-06-23 11:55:23.151Z | 46.619° ENE |
| 8 mins | 2026-06-23 13:29:23.151Z | 220.654° SW | 2026-06-23 13:33:23.151Z | 293.865° NW | 32.897° | 2026-06-23 13:37:23.151Z | 352.29° N |
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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