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: 14 hours ago
TLE from 14 hours ago
0 NOAA 4
1 07529U 74089A 25348.93818316 -.00000018 00000-0 17943-3 0 9999
2 07529 102.0071 354.7756 0009030 187.4194 238.6046 12.53199326336449Epoch: 2025-12-14T22:30Z
TLE epoch observation values (Epoch: 2025-12-14T22:30:59.025Z)
Latitude
63.35442°
Longitude
-91.76257°
Altitude
1,465.539 km
Speed
7.134 km/s
True Right ascension
21h 59m 18s
True Declination
63° 13' 44"
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
10:38:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,455.767 km
Perigee altitude
1,441.632 km
Semi-major axis
7,826.836 km
Eccentricity
0.0009
Inclination
102.0071°
RAAN
354.7756°
Arg. of periapsis
187.4194°
True anomaly
238.51633°
Mean anomaly
238.6046°
Eccentric anomaly
238.56046°
Mean motion
3.13447 °/min
Orbital period
114.85 mins
BSTAR
0.00017943
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2025-12-15 12:13:24.513Z | 40.434° NE | 2025-12-15 12:20:24.513Z | 99.138° ESE | 24.898° | 2025-12-15 12:26:24.513Z | 149.246° SSE |
| 15 mins | 2025-12-15 14:06:24.513Z | 9.846° NNE | 2025-12-15 14:13:24.513Z | 290.504° WNW | 41.854° | 2025-12-15 14:21:24.513Z | 215.112° SW |
| 5 mins | 2025-12-15 16:02:24.513Z | 329.981° NNW | 2025-12-15 16:04:24.513Z | 314.356° NW | 13.986° | 2025-12-15 16:07:24.513Z | 291.415° WNW |
| 13 mins | 2025-12-15 23:13:24.513Z | 118.063° SE | 2025-12-15 23:19:24.513Z | 54.524° ENE | 32.475° | 2025-12-15 23:26:24.513Z | 356.24° N |
| 14 mins | 2025-12-16 01:05:24.513Z | 191.452° SSW | 2025-12-16 01:11:24.513Z | 254.792° W | 36.507° | 2025-12-16 01:19:24.513Z | 330.906° NNW |
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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