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

17352

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 DELTA 1 DEB.

Object identification

Identified? True

Debris? True

Object name: DELTA 1 DEB

International designator: 1978-026CZ

Object number (NORAD): 12256

Object ID (CCSDS): 12256

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: SMALL

Orbital parameters

Period: 101.35 minutes

Inclination: 99.0912 deg

SMA: 7200.712 km

Apoapsis: 883.901 km

Periapsis: 761.253 km

RAAN: 297.2751 deg

Eccentricy: 0.0085164

Argument of periapsis: 34.4188 deg

Mean anomaly: 326.2464 deg

Mean motion: 14.20821725 rev/day

Mean motion (dot): 0.00002994 rev/day²

B* drag term: 0.0013563263 1/R_Earth

Two-line elements (TLE)

Creation date: Sept. 6, 2025, 2:09 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Sept. 5, 2025, 2:58 p.m. UTC

TLE line 0: 0 DELTA 1 DEB

TLE line 1: 1 12256U 78026CZ 25248.62406904 .00002994 00000-0 13563-2 0 9995

TLE line 2: 2 12256 99.0912 297.2751 0085164 34.4188 326.2464 14.20821725272722

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
COSMOS 2251 DEB	LEO	2025-09-08 18:56:03	0.0001182086	209.0 (m)	DEBRIS
CZ-2D R/B	SSO	2025-01-26 01:09:01	0.0003480037	26.0 (m)	ROCKET BODY
FENGYUN 1C DEB	SSO	2024-11-11 10:04:08	0.0006907888	316.0 (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

...

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