EWS-G1, 29155
Orbit data source: Space-Track
EWS-G1, 29155 is a payload satellite owned by NOAA (US) in GEO that was launched on Wed, 24 May 2006 UTC via a DELTA 4M+(4,2) launch vehicle from the Air Force Eastern Test Range (AFETR). 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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29155 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Boeing/ES
Mission
Non-operational Civil Weather
Bus & Motor
HS-601, R-4D-11-300
Mass
3,209 kg wet, 1,543 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan + 1 Ant, 15.0 m
Radar Cross Section
30.033 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 EWS-G1
1 29155U 06018A 26272.62874653 -.00000012 00000-0 00000+0 0 9990
2 29155 4.7971 75.0903 0059308 279.6528 90.4231 0.98786558 44283Epoch: 2026-09-29T15:05Z
TLE epoch observation values (Epoch: 2026-09-29T15:05:23.700Z)
Latitude
0.87317°
Longitude
-148.96144°
Altitude
36,210.042 km
Speed
3.059 km/s
True Right ascension
05h 43m 06s
True Declination
0° 52' 20"
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
18:37:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
36,461.792 km
Perigee altitude
35,956.638 km
Semi-major axis
42,587.352 km
Eccentricity
0.00593
Inclination
4.7971°
RAAN
75.0903°
Arg. of periapsis
279.6528°
True anomaly
91.10265°
Mean anomaly
90.4231°
Eccentric anomaly
90.76288°
Mean motion
0.24696 °/min
Orbital period
1,457.74 mins
BSTAR
0
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Other satellites on launch #18 in the year 2006 (2006-05-24 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.EWS-G1 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2026-09-30 01:02:33.266Z | 240.794° WSW | 2026-09-30 01:02:33.266Z | 240.794° WSW | 25.056° | 2026-10-01 01:02:33.266Z | 245.569° WSW |
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29155 neighbors
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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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