DELTA 1 DEB

Satellite information

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Satellite Type and Status

DEBRISIN ORBIT

Key statistics

Satellite DELTA 1 DEB at a glance.

Uptime

17451

Days in orbit

Revolutions

≈ 14.0

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

98.7

Latest

Satellite identification and parameters

Extended collection of information and parameters for DELTA 1 DEB.

Object identification

Identified? True

Debris? True

Object name: DELTA 1 DEB

International designator: 1978-026DK

Object number (NORAD): 12266

Object ID (CCSDS): 12266

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: SMALL

Orbital parameters

Period: 103.002 minutes

Inclination: 98.7472 deg

SMA: 7278.775 km

Apoapsis: 1005.427 km

Periapsis: 795.852 km

RAAN: 137.9595 deg

Eccentricy: 0.01439626

Argument of periapsis: 201.1854 deg

Mean anomaly: 158.331 deg

Mean motion: 13.98026368 rev/day

Mean motion (dot): 0.00002987 rev/day²

B* drag term: 0.0019522083 1/R_Earth

Two-line elements (TLE)

Creation date: Dec. 12, 2025, 10:14 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 12, 2025, 5:43 a.m. UTC

TLE line 0: 0 DELTA 1 DEB

TLE line 1: 1 12266U 78026DK 25346.23871948 .00002987 00000-0 19522-2 0 9999

TLE line 2: 2 12266 98.7472 137.9595 0143963 201.1854 158.3310 13.98026368257777

Live tracking on map

Real-time ground track for satellite DELTA 1 DEB.

In-orbit conjunctions

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

Target	Orbit	TCA	Probability of collision	Miss distance	Type
METEOR 2-11 DEB	LEO	2025-10-18 05:08:55	0.0001006543	161.0 (m)	DEBRIS
METEOR 2-5 DEB	LEO	2024-12-26 00:03:33	0.0001027643	217.0 (m)	DEBRIS
MSX	SSO	2024-09-25 12:38:09	0.0001034051	525.0 (m)	PAYLOAD
SL-16 R/B	LEO	2024-07-25 13:33:02	0.0001056366	363.0 (m)	ROCKET BODY

Associated space launch

Earth observation satellite

DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2910 | Landsat 3’, on board a Delta 2910 space rocket.

The launch took place on March 5, 1978, 5:54 p.m. from Space Launch Complex 2W.

For more information about the launch, click the button.

Delta 2910 | Landsat 3

Agency: N/A

Status: Launch Successful

Launch date: March 5, 1978, 5:54 p.m. UTC

Rocket: Delta 2910

Launch pad: Space Launch Complex 2W

Location: Vandenberg SFB, CA, USA

...

Go to the launch

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