STARLINK-33987, 63873
Orbit data source: Space-Track
STARLINK-33987, 63873 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 10 May 2025 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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63873 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK V2MO, Unknown motor
Mass
575 kg wet, ~530 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 17.7 m
Radar Cross Section
36.964 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 STARLINK-33987
1 63873U 25094K 26171.16060688 .00001998 00000-0 17518-3 0 9991
2 63873 70.0021 336.0410 0002935 266.5763 93.5061 14.98336658 62555Epoch: 2026-06-20T03:51Z
TLE epoch observation values (Epoch: 2026-06-20T03:51:16.434Z)
Latitude
0.00004°
Longitude
9.84332°
Altitude
574.585 km
Speed
7.574 km/s
True Right ascension
22h 24m 09s
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
08:33:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.023 km
Perigee altitude
567.944 km
Semi-major axis
6,948.12 km
Eccentricity
0.00029
Inclination
70.0021°
RAAN
336.041°
Arg. of periapsis
266.5763°
True anomaly
93.53967°
Mean anomaly
93.5061°
Eccentric anomaly
93.52288°
Mean motion
3.7475 °/min
Orbital period
96.06 mins
BSTAR
0.00017518
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Other satellites on launch #94 in the year 2025 (2025-05-10 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.STARLINK-33987 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 | 2026-06-20 22:01:44.400Z | 338.341° N | 2026-06-20 22:04:44.400Z | 359.873° N | 42.884° | 2026-06-20 22:08:44.400Z | 152.661° SSE |
| 6 mins | 2026-06-21 12:02:44.400Z | 180.585° SSW | 2026-06-21 12:04:44.400Z | 131.952° SE | 39.03° | 2026-06-21 12:08:44.400Z | 34.287° NE |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary 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 descending order |
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