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
BOX + 2 PAN, 1.1 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 NOAA 4
1 07529U 74089A 26259.02069520 -.00000045 00000-0 57625-5 0 9999
2 07529 102.0029 272.7529 0009239 26.0099 358.8956 12.53206295370900Epoch: 2026-09-16T00:29Z
TLE epoch observation values (Epoch: 2026-09-16T00:29:48.065Z)
Latitude
24.34917°
Longitude
-95.16974°
Altitude
1,446.517 km
Speed
7.144 km/s
True Right ascension
17h 49m 02s
True Declination
24° 13' 54"
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
09:36:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,455.901 km
Perigee altitude
1,441.439 km
Semi-major axis
7,826.807 km
Eccentricity
0.00092
Inclination
102.0029°
RAAN
272.7529°
Arg. of periapsis
26.0099°
True anomaly
358.89356°
Mean anomaly
358.8956°
Eccentric anomaly
358.89458°
Mean motion
3.13449 °/min
Orbital period
114.85 mins
BSTAR
0.0000057625
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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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-09-16 23:29:13.613Z | 118.825° SE | 2026-09-16 23:36:13.613Z | 59.45° ENE | 34.627° | 2026-09-16 23:43:13.613Z | 359.052° N |
| 14 mins | 2026-09-17 01:22:13.613Z | 184.255° SSW | 2026-09-17 01:28:13.613Z | 245.775° WSW | 54.683° | 2026-09-17 01:36:13.613Z | 332.709° NNW |
| 14 mins | 2026-09-17 13:24:13.613Z | 30.308° NE | 2026-09-17 13:31:13.613Z | 106.762° ESE | 52.514° | 2026-09-17 13:38:13.613Z | 175.666° S |
| 13 mins | 2026-09-17 15:17:13.613Z | 358.721° N | 2026-09-17 15:23:13.613Z | 304.423° NW | 36.393° | 2026-09-17 15:30:13.613Z | 240.66° 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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