W-SERIES 4, 64543
Orbit data source: Space-Track
W-SERIES 4, 64543 is a payload satellite owned by Varda Space (US) in SSO that was launched on Mon, 23 Jun 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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64543 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Varda Space
Mission
Operational Commercial Earth Obs Sci
Bus & Motor
VW, Unknown motor
Mass
300 kg wet, 55 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.3 m
Radar Cross Section
0.375 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 W-SERIES 4
1 64543U 25135R 25269.20266718 .00008807 00000-0 43150-3 0 9993
2 64543 97.4536 22.2578 0002256 40.4016 319.7385 15.18380789 14757Epoch: 2025-09-26T04:51Z
TLE epoch observation values (Epoch: 2025-09-26T04:51:50.444Z)
Latitude
-0.00005°
Longitude
-55.9552°
Altitude
512.635 km
Speed
7.608 km/s
True Right ascension
01h 29m 01s
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
17:08:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
509.257 km
Perigee altitude
506.15 km
Semi-major axis
6,885.841 km
Eccentricity
0.00023
Inclination
97.4536°
RAAN
22.2578°
Arg. of periapsis
40.4016°
True anomaly
319.72179°
Mean anomaly
319.7385°
Eccentric anomaly
319.73014°
Mean motion
3.79846 °/min
Orbital period
94.78 mins
BSTAR
0.0004315
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Other satellites on launch #135 in the year 2025 (2025-06-23 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.W-SERIES 4 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-09-27 07:52:38.967Z | 180.439° SSW | 2025-09-27 07:55:38.967Z | 266.813° W | 41.177° | 2025-09-27 07:58:38.967Z | 338.968° N |
| 5 mins | 2025-09-27 20:58:38.967Z | 343.924° N | 2025-09-27 21:00:38.967Z | 289.211° WNW | 31.825° | 2025-09-27 21:03:38.967Z | 221.276° SW |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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