WESTPAC, 25398
Orbit data source: Space-Track
WESTPAC, 25398 is a payload satellite owned by EOS WPLTN (AU) in SSO that was launched on Fri, 10 Jul 1998 UTC via a ZENIT-2 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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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25398 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
AU / AUSRelated business
Manufacturer
EOS WPLTN
Mission
Operational Civil Geodetic
Bus & Motor
NIIKP, Unknown motor
Mass
24 kg wet, 24 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 0.1 m
Radar Cross Section
0.049 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 WESTPAC
1 25398U 98043E 25289.63901229 .00000024 00000-0 31324-4 0 9992
2 25398 98.9870 265.2889 0001545 148.3484 211.7787 14.23031592416304Epoch: 2025-10-16T15:20Z
TLE epoch observation values (Epoch: 2025-10-16T15:20:10.661Z)
Latitude
0.00001°
Longitude
9.84863°
Altitude
818.973 km
Speed
7.443 km/s
True Right ascension
17h 41m 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
01:37:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
813.397 km
Perigee altitude
811.176 km
Semi-major axis
7,190.423 km
Eccentricity
0.00015
Inclination
98.987°
RAAN
265.2889°
Arg. of periapsis
148.3484°
True anomaly
211.76938°
Mean anomaly
211.7787°
Eccentric anomaly
211.77404°
Mean motion
3.55968 °/min
Orbital period
101.13 mins
BSTAR
0.000031324
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Other satellites on launch #43 in the year 1998 (1998-07-10 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.WESTPAC 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-10-17 10:29:55.050Z | 43.502° NE | 2025-10-17 10:33:55.050Z | 100.693° ESE | 24.317° | 2025-10-17 10:37:55.050Z | 151.837° SSE |
| 8 mins | 2025-10-17 12:09:55.050Z | 350.954° N | 2025-10-17 12:13:55.050Z | 284.465° WNW | 30.718° | 2025-10-17 12:17:55.050Z | 228.964° WSW |
| 8 mins | 2025-10-17 21:50:55.050Z | 133.286° SE | 2025-10-17 21:54:55.050Z | 59.657° ENE | 34.12° | 2025-10-17 21:58:55.050Z | 2.561° NNE |
| 6 mins | 2025-10-17 23:31:55.050Z | 225.837° WSW | 2025-10-17 23:34:55.050Z | 269.335° W | 21.21° | 2025-10-17 23:37:55.050Z | 309.583° NW |
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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