OV1-21 R/B, 5397

Orbit data source: Space-Track

OV1-21 R/B, 5397 is space debris in LEO originally from a launch on Sat, 07 Aug 1971 UTC via an ATLAS F launch vehicle from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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https://www.satcat.com/sats-embedded/5397?theme=dark&initialShowStats=false

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Identifier

5397, 1971-067B

Orbit

LEO

Country

Related business

United States Space Force (US)

Manufacturer

GD/Convair

Mission

Spacecraft

Bus & Motor

OV1P, FW4S

Mass

~359 kg wet, ~359 kg dry

Launch date (UTC)

1971-08-07 (55 years ago)

Launch vehicle

ATLAS F

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 OV1-21 R/B
1 05397U 71067B   26094.98690402  .00000193  00000-0  82430-4 0  9998
2 05397  87.6210  92.9680 0083430  58.3626 302.5668 14.18216722824077

Epoch: 2026-04-04T23:41Z

TLE epoch observation values (Epoch: 2026-04-04T23:41:08.507Z)

Latitude

0.00007°

Longitude

-95.61625°

Altitude

802.407 km

Speed

7.469 km/s

True Right ascension

06h 11m 52s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:03:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

888.48 km

Perigee altitude

768.233 km

Semi-major axis

7,206.493 km

Eccentricity

0.00834

Inclination

87.621°

RAAN

92.968°

Arg. of periapsis

58.3626°

True anomaly

301.75657°

Mean anomaly

302.5668°

Eccentric anomaly

302.16214°

Mean motion

3.54778 °/min

Orbital period

101.47 mins

BSTAR

0.00008243

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Other satellites on launch #67 in the year 1971 (1971-08-07 UTC)

AVL 802 (MYLAR BALLOON), 5396 (Decayed)

OV1-20/OV1-21 DEB, 5400 (Decayed)

MUSKETBALL, 5383 (Decayed)

RIGIDSPHERE 1, 5410 (Decayed)

OV1-20/OV1-21 DEB, 5384

CANNONBALL 2, 5382 (Decayed)

OV1-20/OV1-21 DEB, 5399 (Decayed)

OV1-20/OV1-21 AKM, 5395

RIGIDSPHERE 2 (LCS 4), 5398

GRIDSPHERE 1, 5406 (Decayed)

GRIDSPHERE 2, 5401 (Decayed)

OV1-20/OV1-21 DEB, 5405 (Decayed)

OV1-20, 5394 (Decayed)

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OV1-21 R/B Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
8 mins	2026-04-05 23:30:52.406Z	139.846° SSE	2026-04-05 23:34:52.406Z	80.552° E	27.4°	2026-04-05 23:38:52.406Z	24.002° NE
6 mins	2026-04-06 01:13:52.406Z	236.629° WSW	2026-04-06 01:16:52.406Z	287.232° WNW	24.132°	2026-04-06 01:19:52.406Z	329.66° NNW
9 mins	2026-04-06 11:49:52.406Z	5.502° NNE	2026-04-06 11:53:52.406Z	104° ESE	43.762°	2026-04-06 11:58:52.406Z	173.391° S

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out OV1-21 R/B, 5397 on other resources

View OV1-21 R/B, 5397 on Heavens-Above

View OV1-21 R/B, 5397 on Keep Track

View OV1-21 R/B, 5397 on Celestrak

View OV1-21 R/B, 5397 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

OV1-21 R/B, 5397

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-04-04T23:41:08.507Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #67 in the year 1971 (1971-08-07 UTC)

OV1-21 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out OV1-21 R/B, 5397 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago