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: 6 hours ago
TLE from 6 hours ago
0 NOAA 4
1 7529U 74089A 26095.80289201 -.00000045 00000-0 92915-5 0 9994
2 7529 102.0058 107.8251 0008828 337.2501 195.8634 12.53202293350454Epoch: 2026-04-05T19:16Z
TLE epoch observation values (Epoch: 2026-04-05T19:16:09.869Z)
Latitude
6.69541°
Longitude
166.1044°
Altitude
1,459.729 km
Speed
7.13 km/s
True Right ascension
19h 16m 59s
True Declination
6° 39' 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
06:46:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,455.596 km
Perigee altitude
1,441.777 km
Semi-major axis
7,826.824 km
Eccentricity
0.00088
Inclination
102.0058°
RAAN
107.8251°
Arg. of periapsis
337.2501°
True anomaly
195.83578°
Mean anomaly
195.8634°
Eccentric anomaly
195.84959°
Mean motion
3.13448 °/min
Orbital period
114.85 mins
BSTAR
0.0000092915
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-04-06 02:06:37.891Z | 218.612° SW | 2026-04-06 02:12:37.891Z | 266.855° W | 21.017° | 2026-04-06 02:18:37.891Z | 314.398° NW |
| 10 mins | 2026-04-06 12:16:37.891Z | 55.156° ENE | 2026-04-06 12:20:37.891Z | 90.046° ESE | 21.899° | 2026-04-06 12:26:37.891Z | 140.687° SSE |
| 15 mins | 2026-04-06 14:07:37.891Z | 12.378° NNE | 2026-04-06 14:14:37.891Z | 280.327° WNW | 43.6° | 2026-04-06 14:22:37.891Z | 209.738° SW |
| 7 mins | 2026-04-06 16:02:37.891Z | 336.767° NNW | 2026-04-06 16:05:37.891Z | 312.852° NW | 16.117° | 2026-04-06 16:09:37.891Z | 281.714° WNW |
| 12 mins | 2026-04-06 23:14:37.891Z | 112.477° ESE | 2026-04-06 23:20:37.891Z | 52.528° ENE | 29.556° | 2026-04-06 23:26:37.891Z | 0.928° NNE |
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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