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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Edit Public Description
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: 10 hours ago
TLE from 10 hours ago
0 NOAA 4
1 07529U 74089A 26013.30328264 -.00000028 00000-0 11500-3 0 9992
2 07529 102.0069 24.4470 0009188 131.9602 239.3219 12.53200105340120Epoch: 2026-01-13T07:16Z
TLE epoch observation values (Epoch: 2026-01-13T07:16:43.620Z)
Latitude
10.90059°
Longitude
160.14183°
Altitude
1,456.634 km
Speed
7.133 km/s
True Right ascension
01h 28m 26s
True Declination
10° 50' 33"
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
17:27:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,455.887 km
Perigee altitude
1,441.505 km
Semi-major axis
7,826.833 km
Eccentricity
0.00092
Inclination
102.0069°
RAAN
24.447°
Arg. of periapsis
131.9602°
True anomaly
239.2314°
Mean anomaly
239.3219°
Eccentric anomaly
239.27665°
Mean motion
3.13447 °/min
Orbital period
114.85 mins
BSTAR
0.000115
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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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-01-13 22:43:14.567Z | 100.325° ESE | 2026-01-13 22:48:14.567Z | 58.462° ENE | 23.368° | 2026-01-13 22:54:14.567Z | 7.169° NNE |
| 14 mins | 2026-01-14 00:34:14.567Z | 169.533° S | 2026-01-14 00:40:14.567Z | 231.878° WSW | 43.992° | 2026-01-14 00:48:14.567Z | 338.763° N |
| 5 mins | 2026-01-14 02:32:14.567Z | 253.624° W | 2026-01-14 02:34:14.567Z | 268.662° W | 12.754° | 2026-01-14 02:37:14.567Z | 291.144° WNW |
| 13 mins | 2026-01-14 12:37:14.567Z | 42.061° NE | 2026-01-14 12:43:14.567Z | 105.626° ESE | 30.985° | 2026-01-14 12:50:14.567Z | 163.901° S |
| 14 mins | 2026-01-14 14:29:14.567Z | 3.895° NNE | 2026-01-14 14:35:14.567Z | 305.358° NW | 37.006° | 2026-01-14 14:43:14.567Z | 226.061° WSW |
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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