NOAA 9

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite NOAA 9 at a glance.

Uptime

14921

Days in orbit

Revolutions

≈ 14.2

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

99.1

Latest

Satellite identification and parameters

Extended collection of information and parameters for NOAA 9.

Object identification

Identified? True

Debris? False

Object name: NOAA 9

International designator: 1984-123A

Object number (NORAD): 15427

Object ID (CCSDS): 15427

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 101.625 minutes

Inclination: 99.1204 deg

SMA: 7213.742 km

Apoapsis: 845.689 km

Periapsis: 825.525 km

RAAN: 306.8003 deg

Eccentricy: 0.00139759

Argument of periapsis: 318.8352 deg

Mean anomaly: 94.9389 deg

Mean motion: 14.16973836 rev/day

Mean motion (dot): 0.00000223 rev/day²

B* drag term: 0.0001344199 1/R_Earth

Two-line elements (TLE)

Creation date: Oct. 18, 2025, 2:17 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 18, 2025, 12:16 a.m. UTC

TLE line 0: 0 NOAA 9

TLE line 1: 1 15427U 84123A 25291.01145240 .00000223 00000-0 13442-3 0 9997

TLE line 2: 2 15427 99.1204 306.8003 0013976 318.8352 94.9389 14.16973836109125

Live tracking on map

Real-time ground track for satellite NOAA 9.

In-orbit conjunctions

A list of the most updated potential collisions computed for object NOAA 9.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
COSMOS 2251 DEB	LEO	2025-07-11 21:34:03	0.0001266704	187.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2025-06-13 08:06:16	0.0001013103	513.0 (m)	DEBRIS
METEOR 1-17 DEB	LEO	2025-05-17 15:29:25	0.0001060233	527.0 (m)	DEBRIS
METEOR 1-17 DEB	LEO	2025-05-11 18:28:11	0.0001310166	105.0 (m)	DEBRIS
CZ-6A DEB	SSO	2025-05-06 01:32:29	0.001074915	814.0 (m)	DEBRIS

Associated space launch

Fourth generation NOAA meteorological satellite

NOAA 9 was lifted into orbit during the mission ‘Atlas E | NOAA 9’, on board a Atlas E space rocket.

The launch took place on Dec. 12, 1984, 10:42 a.m. from Space Launch Complex 3W.

For more information about the launch, click the button.

Atlas E | NOAA 9

Agency: N/A

Status: Launch Successful

Launch date: Dec. 12, 1984, 10:42 a.m. UTC

Rocket: Atlas E

Launch pad: Space Launch Complex 3W

Location: Vandenberg SFB, CA, USA

...

Go to the launch

Latest news about this satellite

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