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: 20 hours ago
TLE from 20 hours ago
0 NOAA 4
1 07529U 74089A 25303.53969174 -.00000032 00000-0 94236-4 0 9992
2 07529 102.0086 308.8990 0008804 275.4989 261.0446 12.53197790330758Epoch: 2025-10-30T12:57Z
TLE epoch observation values (Epoch: 2025-10-30T12:57:09.366Z)
Latitude
3.39265°
Longitude
-103.76807°
Altitude
1,454.418 km
Speed
7.135 km/s
True Right ascension
08h 38m 28s
True Declination
3° 22' 27"
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
04:22:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,455.597 km
Perigee altitude
1,441.815 km
Semi-major axis
7,826.843 km
Eccentricity
0.00088
Inclination
102.0086°
RAAN
308.899°
Arg. of periapsis
275.4989°
True anomaly
260.94496°
Mean anomaly
261.0446°
Eccentric anomaly
260.99478°
Mean motion
3.13446 °/min
Orbital period
114.85 mins
BSTAR
0.000094236
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-10-31 11:40:55.610Z | 53.618° ENE | 2025-10-31 11:45:55.610Z | 91.44° ESE | 16.377° | 2025-10-31 11:49:55.610Z | 122.903° SE |
| 15 mins | 2025-10-31 13:32:55.610Z | 18.174° NNE | 2025-10-31 13:39:55.610Z | 187.338° SSW | 44.878° | 2025-10-31 13:47:55.610Z | 199.573° SSW |
| 10 mins | 2025-10-31 15:26:55.610Z | 345.04° N | 2025-10-31 15:30:55.610Z | 311.943° NW | 20.264° | 2025-10-31 15:36:55.610Z | 264.085° W |
| 11 mins | 2025-10-31 22:40:55.610Z | 98.219° ESE | 2025-10-31 22:45:55.610Z | 51.635° ENE | 24.587° | 2025-10-31 22:51:55.610Z | 3.533° NNE |
| 15 mins | 2025-11-01 00:30:55.610Z | 171.815° S | 2025-11-01 00:37:55.610Z | 268.737° W | 43.416° | 2025-11-01 00:45:55.610Z | 338.385° N |
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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