NOAA 4, 7529
Orbit data source: Space-Track
NOAA 4, 7529 is a payload satellite owned by NOAA (US) in SSO that was launched on Fri, 15 Nov 1974 UTC via a DELTA 2310 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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7529 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
RCA/East Windsor
Mission
Non-operational spacecraft
Bus & Motor
TIROS M, Unknown motor
Mass
345 kg wet, 345 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 20 hours ago
TLE from 20 hours ago
0 NOAA 4
1 07529U 74089A 26162.99333866 -.00000026 00000-0 13047-3 0 9992
2 07529 102.0008 175.7238 0008892 204.1176 212.7332 12.53203740358875Epoch: 2026-06-11T23:50Z
TLE epoch observation values (Epoch: 2026-06-11T23:50:24.460Z)
Latitude
55.02332°
Longitude
-99.80636°
Altitude
1,465.876 km
Speed
7.132 km/s
True Right ascension
10h 32m 29s
True Declination
54° 52' 34"
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
06:28:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,455.64 km
Perigee altitude
1,441.721 km
Semi-major axis
7,826.818 km
Eccentricity
0.00089
Inclination
102.0008°
RAAN
175.7238°
Arg. of periapsis
204.1176°
True anomaly
212.67815°
Mean anomaly
212.7332°
Eccentric anomaly
212.70567°
Mean motion
3.13448 °/min
Orbital period
114.85 mins
BSTAR
0.00013047
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Other satellites on launch #89 in the year 1974 (1974-11-15 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.NOAA 4 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-06-12 22:43:09.234Z | 91.42° ESE | 2026-06-12 22:48:09.234Z | 51.249° ENE | 19.738° | 2026-06-12 22:53:09.234Z | 11.252° NNE |
| 14 mins | 2026-06-13 00:33:09.234Z | 159.106° S | 2026-06-13 00:40:09.234Z | 353.948° N | 44.819° | 2026-06-13 00:47:09.234Z | 342.715° N |
| 8 mins | 2026-06-13 02:30:09.234Z | 241.158° WSW | 2026-06-13 02:33:09.234Z | 265.675° W | 17.091° | 2026-06-13 02:38:09.234Z | 304.86° NW |
| 12 mins | 2026-06-13 12:36:09.234Z | 44.576° NE | 2026-06-13 12:42:09.234Z | 99.495° ESE | 26.119° | 2026-06-13 12:48:09.234Z | 150.946° SSE |
| 14 mins | 2026-06-13 14:28:09.234Z | 8.81° NNE | 2026-06-13 14:35:09.234Z | 290.351° WNW | 41.042° | 2026-06-13 14:42:09.234Z | 218.719° SW |
| 5 mins | 2026-06-13 16:24:09.234Z | 329.602° NNW | 2026-06-13 16:26:09.234Z | 314.238° NW | 13.285° | 2026-06-13 16:29:09.234Z | 291.857° WNW |
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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