DMSP 5D-2 F10 (USA 68)

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite DMSP 5D-2 F10 (USA 68) at a glance.

Uptime

12796

Days in orbit

Revolutions

≈ 14.4

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

98.6

Latest

Satellite identification and parameters

Extended collection of information and parameters for DMSP 5D-2 F10 (USA 68).

Object identification

Identified? True

Debris? False

Object name: DMSP 5D-2 F10 (USA 68)

International designator: 1990-105A

Object number (NORAD): 20978

Object ID (CCSDS): 20978

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 99.999 minutes

Inclination: 98.6378 deg

SMA: 7136.593 km

Apoapsis: 809.954 km

Periapsis: 706.962 km

RAAN: 39.8198 deg

Eccentricy: 0.00721575

Argument of periapsis: 122.6397 deg

Mean anomaly: 238.1781 deg

Mean motion: 14.40012892 rev/day

Mean motion (dot): 0.00000577 rev/day²

B* drag term: 0.00019183408 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, 3:52 a.m. UTC

TLE line 0: 0 DMSP 5D-2 F10 (USA 68)

TLE line 1: 1 20978U 90105A 25346.16137557 .00000577 00000-0 19183-3 0 9990

TLE line 2: 2 20978 98.6378 39.8198 0072158 122.6397 238.1781 14.40012892835591

Live tracking on map

Real-time ground track for satellite DMSP 5D-2 F10 (USA 68).

In-orbit conjunctions

A list of the most updated potential collisions computed for object DMSP 5D-2 F10 (USA 68).

Target	Orbit	TCA	Probability of collision	Miss distance	Type
CZ-6A DEB	LEO	2025-11-09 00:45:34	0.0002193754	838.0 (m)	DEBRIS
NOAA 16 DEB	SSO	2025-05-17 12:51:38	0.000154003	261.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2025-03-08 18:22:40	0.0001084263	391.0 (m)	DEBRIS
COSMOS 1867 COOLANT	LEO	2025-03-04 05:10:38	0.01354115	24.0 (m)	DEBRIS
DMSP 5D-2 F11 DEB	SSO	2025-01-01 07:39:08	0.0004661265	40.0 (m)	DEBRIS

Associated space launch

Military meteorological satellite

DMSP 5D-2 F10 (USA 68) was lifted into orbit during the mission ‘Atlas E | DMSP-5D2 F10’, on board a Atlas E space rocket.

The launch took place on Dec. 1, 1990, 3:57 p.m. from Space Launch Complex 3W.

For more information about the launch, click the button.

Atlas E | DMSP-5D2 F10

Agency: N/A

Status: Launch Successful

Launch date: Dec. 1, 1990, 3:57 p.m. UTC

Rocket: Atlas E

Launch pad: Space Launch Complex 3W

Location: Vandenberg SFB, CA, USA

...

Go to the launch

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