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 Microgravity
Bus & Motor
VW, Unknown motor
Mass
300 kg wet, 55 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Trunc Cone, 2.4 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 W-SERIES 4
1 64543U 25135R 26023.32462168 .00055996 25537-5 71063-3 0 9994
2 64543 97.4480 138.4054 0415339 219.7510 137.2596 14.97762516 32726Epoch: 2026-01-23T07:47Z
TLE epoch observation values (Epoch: 2026-01-23T07:47:27.313Z)
Latitude
0.00004°
Longitude
-101.12347°
Altitude
794.259 km
Speed
7.339 km/s
True Right ascension
09h 13m 37s
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
03:19:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
859.417 km
Perigee altitude
282.184 km
Semi-major axis
6,948.938 km
Eccentricity
0.04153
Inclination
97.448°
RAAN
138.4054°
Arg. of periapsis
219.751°
True anomaly
140.3694°
Mean anomaly
137.2596°
Eccentric anomaly
138.82627°
Mean motion
3.74684 °/min
Orbital period
96.08 mins
BSTAR
0.00071063
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Other satellites on launch #135 in the year 2025 (2025-06-23 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.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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-01-24 06:23:41.599Z | 108.711° ESE | 2026-01-24 06:26:41.599Z | 72.964° E | 20.51° | 2026-01-24 06:30:41.599Z | 22.017° NNE |
| 9 mins | 2026-01-24 07:57:41.599Z | 187.103° SSW | 2026-01-24 08:01:41.599Z | 252.946° W | 39.567° | 2026-01-24 08:06:41.599Z | 337.164° NNW |
| 4 mins | 2026-01-24 19:41:41.599Z | 55.746° ENE | 2026-01-24 19:43:41.599Z | 100.231° ESE | 20.107° | 2026-01-24 19:45:41.599Z | 140.828° SSE |
| 4 mins | 2026-01-24 21:16:41.599Z | 329.279° NNW | 2026-01-24 21:18:41.599Z | 289.207° WNW | 18.884° | 2026-01-24 21:20:41.599Z | 250.045° W |
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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