GRACE-FO 2, 43477
Orbit data source: Space-Track
GRACE-FO 2, 43477 is an American payload satellite in LEO that was launched on Tue, 22 May 2018 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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43477 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
ADS/Bremen
Mission
Operational Civil Science
Bus & Motor
FLEXBUS, N2 AOCS
Mass
600 kg wet, ~500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Half Hex Poly, 1.6 m
Radar Cross Section
5.603 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 GRACE-FO 2
1 43477U 18047B 25260.22541095 .00004447 00000-0 12833-3 0 9997
2 43477 88.9784 235.5805 0014990 94.2216 266.0751 15.35333123407878Epoch: 2025-09-17T05:24Z
TLE epoch observation values (Epoch: 2025-09-17T05:24:35.506Z)
Latitude
-0.00001°
Longitude
158.02815°
Altitude
463.865 km
Speed
7.634 km/s
True Right ascension
15h 42m 19s
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
12:30:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
466.965 km
Perigee altitude
446.474 km
Semi-major axis
6,834.856 km
Eccentricity
0.0015
Inclination
88.9784°
RAAN
235.5805°
Arg. of periapsis
94.2216°
True anomaly
265.90375°
Mean anomaly
266.0751°
Eccentric anomaly
265.98942°
Mean motion
3.84104 °/min
Orbital period
93.72 mins
BSTAR
0.00012833
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Other satellites on launch #47 in the year 2018 (2018-05-22 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.GRACE-FO 2 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-09-17 22:44:59.737Z | 164.982° S | 2025-09-17 22:46:59.737Z | 126.199° SE | 39.909° | 2025-09-17 22:49:59.737Z | 8.019° NNE |
| 4 mins | 2025-09-18 10:08:59.737Z | 49.256° ENE | 2025-09-18 10:09:59.737Z | 74.288° E | 22.35° | 2025-09-18 10:12:59.737Z | 140.29° SSE |
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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