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NOAA 9, 15427

Orbit data source: Space-Track

NOAA 9, 15427 is a payload satellite owned by NOAA (US) in SSO that was launched on Wed, 12 Dec 1984 UTC via an ATLAS E 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/15427?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

15427, 1984-123A

Orbit

SSO

Last TLE update

8 hours ago

Origin

National Oceanic and Atmospheric Administration (US)

Manufacturer

RCA/East Windsor

Mission

Non-operational Civil Weather

Bus & Motor

ATN, STAR 37S

Mass

1,712 kg wet, 1,030 kg dry

Launch date (UTC)

1984-12-12 (41 years ago)

Launch vehicle

ATLAS E

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 1 Pan, 4.0 m

Radar Cross Section

9.532 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 8 hours ago

0 NOAA 9
1 15427U 84123A   25202.95796075  .00000090  00000-0  67932-4 0  9996
2 15427  99.1215 216.5059 0014233 201.3815 218.0509 14.16936808 96656

Epoch: 2025-07-21T22:59Z

TLE epoch observation values (Epoch: 2025-07-21T22:59:27.808Z)

Latitude

58.22977°

Longitude

-83.26367°

Altitude

853.599 km

Speed

7.427 km/s

True Right ascension

13h 26m 14s

True Declination

58° 04' 40"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-32.55209°

Longitude

106.14996°

Altitude

837.884 km

Speed

7.438 km/s

Apparent Right ascension

04h 25m 40s

Apparent Declination

-43° 30' 57"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

19:30:05

Azimuth

111.466° ESE

Elevation

-55.838°

Doppler factor

Orbital elements

Apogee altitude

843.177 km

Perigee altitude

822.65 km

Semi-major axis

7,211.051 km

Eccentricity

0.00142

Inclination

99.1215°

RAAN

216.5059°

Arg. of periapsis

201.3815°

True anomaly

217.95051°

Mean anomaly

218.0509°

Eccentric anomaly

218.00069°

Mean motion

3.54442 °/min

Orbital period

101.57 mins

BSTAR

0.000067932

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Other satellites on launch #123 in the year 1984 (1984-12-12 UTC)

NOAA 9 DEB, 15440 (Decayed)

NOAA 9 DEB, 15441 (Decayed)

NOAA 9 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.
7 mins	2025-07-22 12:52:29.927Z	45.848° ENE	2025-07-22 12:56:29.927Z	101.126° ESE	22.805°	2025-07-22 12:59:29.927Z	141.848° SSE
8 mins	2025-07-22 14:33:29.927Z	348.315° N	2025-07-22 14:36:29.927Z	294.464° NW	32.955°	2025-07-22 14:41:29.927Z	223.556° SW
8 mins	2025-07-23 00:16:29.927Z	131.207° SE	2025-07-23 00:20:29.927Z	54.345° ENE	33.973°	2025-07-23 00:24:29.927Z	1.95° NNE
7 mins	2025-07-23 01:57:29.927Z	223.403° SW	2025-07-23 02:00:29.927Z	265.428° W	22.064°	2025-07-23 02:04:29.927Z	315.829° 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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Check out NOAA 9, 15427 on other resources

View NOAA 9, 15427 on NASA - NSSDCA Website

View NOAA 9, 15427 on Heavens-Above

View NOAA 9, 15427 on Keep Track

View NOAA 9, 15427 on Celestrak

View NOAA 9, 15427 on Gunter's Space Page

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