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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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Iframe URL

https://www.satcat.com/sats-embedded/7529?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

7529, 1974-089A

Orbit

SSO

Last TLE update

16 hours ago

Origin

National Oceanic and Atmospheric Administration (US)

Manufacturer

RCA/East Windsor

Mission

Non-operational Civil Weather

Bus & Motor

TIROS M, Unknown motor

Mass

345 kg wet, 345 kg dry

Launch date (UTC)

1974-11-15 (50 years ago)

Launch vehicle

DELTA 2310

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Hex Poly + 3 Pan, 1.25 m

Radar Cross Section

1.292 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 16 hours ago

0 NOAA 4
1 07529U 74089A   25128.61770950 -.00000022  00000-0  15497-3 0  9998
2 07529 102.0038 132.1075 0008588 247.0474 221.4037 12.53194420308848

Epoch: 2025-05-08T14:49Z

Definitive object data (Epoch: 2025-05-08T14:49:30.1Z)

Latitude

68.23542°

Longitude

-104.95194°

Altitude

1,467.841 km

Speed

7.133 km/s

True Right ascension

22h 56m 26s

True Declination

68° 07' 39"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

3.25822°

Longitude

-135.6031°

Altitude

1,450.975 km

Speed

7.138 km/s

Apparent Right ascension

22h 58m 05s

Apparent Declination

-20° 57' 07"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

14:39:46

Azimuth

85.107° E

Elevation

-39.492°

Doppler factor

Orbital elements

Apogee altitude

1,455.441 km

Perigee altitude

1,441.998 km

Semi-major axis

7,826.857 km

Eccentricity

0.0008588

Inclination

102.0038°

RAAN

132.1075°

Arg. of periapsis

247.0474°

True anomaly

221.33867°

Mean anomaly

221.4037°

Eccentric anomaly

221.37118°

Mean motion

3.13446 °/min

BSTAR

0.00015497

Orbital period

114.85 mins

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Other satellites on launch #89 in the year 1974 (1974-11-15 UTC)

THORAD DELTA 1 DEB, 8160

THORAD DELTA 1 DEB, 8161

THORAD DELTA 1 DEB, 8162

THORAD DELTA 1 DEB, 8163

THORAD DELTA 1 DEB, 8164

THORAD DELTA 1 DEB, 8165

THORAD DELTA 1 DEB, 8166

THORAD DELTA 1 DEB, 8167

THORAD DELTA 1 DEB, 8168

THORAD DELTA 1 DEB, 8169

THORAD DELTA 1 DEB, 8170

THORAD DELTA 1 DEB, 8171 (Decayed)

THORAD DELTA 1 DEB, 8172

THORAD DELTA 1 DEB, 8173

NOAA 4 Visibility forecast

Observer location: undefined°, undefined°

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	2025-05-09 11:57:55.521Z	38.261° NE	2025-05-09 12:04:55.521Z	97.511° ESE	27.123°	2025-05-09 12:11:55.521Z	155.932° SSE
15 mins	2025-05-09 13:50:55.521Z	8.409° NNE	2025-05-09 13:57:55.521Z	295.498° NW	40.427°	2025-05-09 14:05:55.521Z	218.766° SW
5 mins	2025-05-09 15:46:55.521Z	330.61° NNW	2025-05-09 15:48:55.521Z	315.532° NNW	12.821°	2025-05-09 15:51:55.521Z	293.397° NW
13 mins	2025-05-09 22:57:55.521Z	121.951° SE	2025-05-09 23:03:55.521Z	55.909° ENE	34.348°	2025-05-09 23:10:55.521Z	355.416° N
14 mins	2025-05-10 00:49:55.521Z	194.698° SSW	2025-05-10 00:55:55.521Z	253.307° W	34.428°	2025-05-10 01:03:55.521Z	328.972° NNW

Authenticating...

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Check out NOAA 4, 7529 on other resources

View NOAA 4, 7529 on NASA - NSSDCA Website

View NOAA 4, 7529 on Heavens-Above

View NOAA 4, 7529 on Keep Track

View NOAA 4, 7529 on Celestrak

View NOAA 4, 7529 on Gunter's Space Page

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