THORAD DELTA 1 DEB

Satellite information

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Satellite Type and Status

DEBRISIN ORBIT

Key statistics

Satellite THORAD DELTA 1 DEB at a glance.

Uptime

18661

Days in orbit

Revolutions

≈ 12.5

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

103.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for THORAD DELTA 1 DEB.

Object identification

Identified? True

Debris? True

Object name: THORAD DELTA 1 DEB

International designator: 1974-089EG

Object number (NORAD): 9989

Object ID (CCSDS): 9989

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: SMALL

Orbital parameters

Period: 115.319 minutes

Inclination: 103.0411 deg

SMA: 7848.017 km

Apoapsis: 1622.397 km

Periapsis: 1317.367 km

RAAN: 247.6275 deg

Eccentricy: 0.01943357

Argument of periapsis: 329.6397 deg

Mean anomaly: 155.694 deg

Mean motion: 12.48713655 rev/day

Mean motion (dot): 0.00001371 rev/day²

B* drag term: 0.008887515 1/R_Earth

Two-line elements (TLE)

Creation date: Dec. 17, 2025, 11:34 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 17, 2025, 5:42 a.m. UTC

TLE line 0: 0 THORAD DELTA 1 DEB

TLE line 1: 1 09989U 74089EG 25351.23803301 .00001371 00000-0 88875-2 0 9999

TLE line 2: 2 09989 103.0411 247.6275 0194336 329.6397 155.6940 12.48713655278789

Live tracking on map

Real-time ground track for satellite THORAD DELTA 1 DEB.

In-orbit conjunctions

A list of the most updated potential collisions computed for object THORAD DELTA 1 DEB.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
COSMOS 1040	LEO	2025-08-22 18:57:15	0.0003964784	535.0 (m)	PAYLOAD

Associated space launch

Meteorological satellite using radiometric imaging

THORAD DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2310 | NOAA 4’, on board a Delta 2310 space rocket.

The launch took place on Nov. 15, 1974, 5:11 p.m. from Space Launch Complex 2W.

For more information about the launch, click the button.

Delta 2310 | NOAA 4

Agency: N/A

Status: Launch Successful

Launch date: Nov. 15, 1974, 5:11 p.m. UTC

Rocket: Delta 2310

Launch pad: Space Launch Complex 2W

Location: Vandenberg SFB, CA, USA

...

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