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

17397

Days in orbit

Revolutions

≈ 14.2

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

99.2

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: 1978-026EG

Object number (NORAD): 12288

Object ID (CCSDS): 12288

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: SMALL

Orbital parameters

Period: 101.292 minutes

Inclination: 99.1638 deg

SMA: 7197.969 km

Apoapsis: 876.746 km

Periapsis: 762.922 km

RAAN: 268.2363 deg

Eccentricy: 0.00790667

Argument of periapsis: 119.8531 deg

Mean anomaly: 301.8533 deg

Mean motion: 14.21633943 rev/day

Mean motion (dot): 0.00002287 rev/day²

B* drag term: 0.0010304247 1/R_Earth

Two-line elements (TLE)

Creation date: Oct. 21, 2025, 3:26 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 20, 2025, 8:30 p.m. UTC

TLE line 0: 0 DELTA 1 DEB

TLE line 1: 1 12288U 78026EG 25293.85433501 .00002287 00000-0 10304-2 0 9993

TLE line 2: 2 12288 99.1638 268.2363 0079067 119.8531 301.8533 14.21633943297092

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
DTUSAT	SSO	2025-05-29 18:26:31	0.002524826	126.0 (m)	PAYLOAD
IRIDIUM 38	LEO	2025-04-14 23:09:09	0.0002708334	165.0 (m)	PAYLOAD
COSMOS 2251 DEB	LEO	2025-02-22 05:53:37	0.0001038742	404.0 (m)	DEBRIS
SL-8 R/B	LEO	2025-02-22 04:06:08	0.0001191973	136.0 (m)	ROCKET BODY
FENGYUN 1C DEB	SSO	2024-08-09 09:36:44	0.0001151776	392.0 (m)	DEBRIS

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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