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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
64543 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
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
Box + Trunc Cone + Cone + 2 Pan, 2.4 m
Radar Cross Section
3.416 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 W-SERIES 4
1 64543U 25135R 26104.89639587 .00016657 21151-5 21179-3 0 9999
2 64543 97.4605 216.8149 0401845 303.0457 53.2764 15.01054172 44955Epoch: 2026-04-14T21:30Z
TLE epoch observation values (Epoch: 2026-04-14T21:30:48.603Z)
Latitude
-0.00003°
Longitude
51.04632°
Altitude
407.346 km
Speed
7.754 km/s
True Right ascension
14h 27m 15s
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
12:16:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
839.461 km
Perigee altitude
281.8 km
Semi-major axis
6,938.768 km
Eccentricity
0.04018
Inclination
97.4605°
RAAN
216.8149°
Arg. of periapsis
303.0457°
True anomaly
57.07863°
Mean anomaly
53.2764°
Eccentric anomaly
55.16624°
Mean motion
3.75508 °/min
Orbital period
95.87 mins
BSTAR
0.00021179
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
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
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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-04-15 07:13:48.344Z | 154.98° SSE | 2026-04-15 07:17:48.344Z | 45.758° ENE | 40.971° | 2026-04-15 07:21:48.344Z | 354.362° N |
| 5 mins | 2026-04-15 18:55:48.344Z | 64.793° ENE | 2026-04-15 18:57:48.344Z | 89.087° E | 15.114° | 2026-04-15 19:00:48.344Z | 123.905° SE |
| 9 mins | 2026-04-15 20:28:48.344Z | 5.433° NNE | 2026-04-15 20:32:48.344Z | 313.835° NW | 42.676° | 2026-04-15 20:37:48.344Z | 203.593° 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 descending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
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 |
|---|