OV1-20/OV1-21 AKM

Satellite information

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Satellite Type and Status

ROCKET BODYIN ORBIT

Key statistics

Satellite OV1-20/OV1-21 AKM at a glance.

Uptime

19852

Days in orbit

Revolutions

≈ 14.4

Per day

Orbit

LEO

Low Earth Orbit

Inclination

87.6

Latest

Satellite identification and parameters

Extended collection of information and parameters for OV1-20/OV1-21 AKM.

Object identification

Identified? True

Debris? False

Object name: OV1-20/OV1-21 AKM

International designator: 1971-067K

Object number (NORAD): 5395

Object ID (CCSDS): 5395

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 99.86 minutes

Inclination: 87.6189 deg

SMA: 7129.993 km

Apoapsis: 789.632 km

Periapsis: 714.085 km

RAAN: 10.1977 deg

Eccentricy: 0.00529784

Argument of periapsis: 309.1509 deg

Mean anomaly: 50.4991 deg

Mean motion: 14.42012632 rev/day

Mean motion (dot): 0.00001644 rev/day²

B* drag term: 0.00048758 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, 6:19 a.m. UTC

TLE line 0: 0 OV1-20/OV1-21 AKM

TLE line 1: 1 05395U 71067K 25346.26379671 .00001644 00000-0 48758-3 0 9994

TLE line 2: 2 05395 87.6189 10.1977 0052978 309.1509 50.4991 14.42012632830640

Live tracking on map

Real-time ground track for satellite OV1-20/OV1-21 AKM.

In-orbit conjunctions

A list of the most updated potential collisions computed for object OV1-20/OV1-21 AKM.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
FENGYUN 1C DEB	SSO	2025-10-19 18:01:20	0.0008958161	102.0 (m)	DEBRIS
CZ-4B R/B	SSO	2025-04-19 00:08:41	0.0001068299	153.0 (m)	ROCKET BODY
COSMOS 2251 DEB	LEO	2025-03-20 04:56:49	0.0004600876	181.0 (m)	DEBRIS
SCOUT G-1 DEB	LEO	2024-12-18 19:22:27	0.0001752852	787.0 (m)	DEBRIS
IRIDIUM 16	LEO	2024-10-26 17:15:59	0.0004476916	92.0 (m)	PAYLOAD

Associated space launch

High-density satellite designed to obtain atmospheric density data at low altitudes.

OV1-20/OV1-21 AKM was lifted into orbit during the mission ‘Atlas F | LOADS 2’, on board a Atlas F space rocket.

The launch took place on Aug. 7, 1971, 12:11 a.m. from 576A2.

For more information about the launch, click the button.

Atlas F | LOADS 2

Agency: N/A

Status: Launch Successful

Launch date: Aug. 7, 1971, 12:11 a.m. UTC

Rocket: Atlas F

Launch pad: 576A2

Location: Vandenberg SFB, CA, USA

...

Go to the launch

Latest news about this satellite

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