FORMOSAT-5, 42920
Orbit data source: Space-Track
FORMOSAT-5, 42920 is a payload satellite owned by NSPO (TW) in SSO that was launched on Thu, 24 Aug 2017 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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42920 intel report (Beta)
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Identifier
Orbit
Country
TW / TWNRelated business
Manufacturer
NSPO
Mission
Operational Civil Imaging/Sci
Bus & Motor
Unknown
Mass
525 kg wet, 445 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Oct Cyl + 2 Pan, 2.3 m
Radar Cross Section
4.338 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 FORMOSAT-5
1 42920U 17049A 26171.43210432 .00000097 00000-0 35731-4 0 9993
2 42920 98.2254 246.6698 0012638 75.3872 284.8723 14.50899817467140Epoch: 2026-06-20T10:22Z
TLE epoch observation values (Epoch: 2026-06-20T10:22:13.813Z)
Latitude
-0.00006°
Longitude
-177.53456°
Altitude
723.39 km
Speed
7.495 km/s
True Right ascension
16h 26m 40s
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
21:27:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
728.776 km
Perigee altitude
710.835 km
Semi-major axis
7,097.943 km
Eccentricity
0.00126
Inclination
98.2254°
RAAN
246.6698°
Arg. of periapsis
75.3872°
True anomaly
284.73227°
Mean anomaly
284.8723°
Eccentric anomaly
284.80229°
Mean motion
3.62948 °/min
Orbital period
99.19 mins
BSTAR
0.000035731
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Other satellites on launch #49 in the year 2017 (2017-08-24 UTC)
No other RSOs were in this launch
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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.FORMOSAT-5 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-06-22 17:33:34.897Z | 23.628° NE | 2026-06-22 17:37:34.897Z | 79.954° E | 38.063° | 2026-06-22 17:42:34.897Z | 177.121° S |
| 4 mins | 2026-06-22 19:14:34.897Z | 313.023° NW | 2026-06-22 19:15:34.897Z | 298.164° NW | 16.153° | 2026-06-22 19:18:34.897Z | 258.505° W |
| 7 mins | 2026-06-23 04:42:34.897Z | 146.749° SSE | 2026-06-23 04:45:34.897Z | 90° ESE | 39.937° | 2026-06-23 04:49:34.897Z | 358.211° N |
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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