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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
25398 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
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: 8 hours ago
TLE from 8 hours ago
0 WESTPAC
1 25398U 98043E 26093.94894264 .00000005 00000-0 22747-4 0 9998
2 25398 99.0101 78.2561 0002326 75.2180 284.9255 14.23049121440385Epoch: 2026-04-03T22:46Z
TLE epoch observation values (Epoch: 2026-04-03T22:46:28.644Z)
Latitude
0.00002°
Longitude
-95.63899°
Altitude
817.538 km
Speed
7.445 km/s
True Right ascension
05h 13m 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
13:00:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
813.901 km
Perigee altitude
810.556 km
Semi-major axis
7,190.365 km
Eccentricity
0.00023
Inclination
99.0101°
RAAN
78.2561°
Arg. of periapsis
75.218°
True anomaly
284.89974°
Mean anomaly
284.9255°
Eccentric anomaly
284.91262°
Mean motion
3.55973 °/min
Orbital period
101.13 mins
BSTAR
0.000022747
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 #43 in the year 1998 (1998-07-10 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.WESTPAC 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-04-04 11:10:38.467Z | 34.064° NE | 2026-04-04 11:14:38.467Z | 93.319° ESE | 31.722° | 2026-04-04 11:19:38.467Z | 166.063° S |
| 7 mins | 2026-04-04 12:51:38.467Z | 338.605° N | 2026-04-04 12:54:38.467Z | 293.045° NW | 24.092° | 2026-04-04 12:58:38.467Z | 240.91° WSW |
| 9 mins | 2026-04-04 22:31:38.467Z | 148.309° SSE | 2026-04-04 22:35:38.467Z | 68.967° E | 41.306° | 2026-04-04 22:40:38.467Z | 353.58° N |
| 4 mins | 2026-04-05 00:14:38.467Z | 251.517° W | 2026-04-05 00:15:38.467Z | 264.493° W | 15.229° | 2026-04-05 00:18:38.467Z | 301° 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 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 |
|---|