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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5397 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
GD/Convair
Mission
Spacecraft
Bus & Motor
OV1P, FW4S
Mass
~359 kg wet, ~359 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 OV1-21 R/B
1 5397U 71067B 26154.32351042 .00000137 00000-0 56461-4 0 9990
2 5397 87.6268 77.0316 0079801 225.7748 133.6870 14.18230386832486Epoch: 2026-06-03T07:45Z
TLE epoch observation values (Epoch: 2026-06-03T07:45:51.300Z)
Latitude
-0°
Longitude
68.78408°
Altitude
874.371 km
Speed
7.395 km/s
True Right ascension
05h 08m 07s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
03:47:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
885.818 km
Perigee altitude
770.802 km
Semi-major axis
7,206.447 km
Eccentricity
0.00798
Inclination
87.6268°
RAAN
77.0316°
Arg. of periapsis
225.7748°
True anomaly
134.34372°
Mean anomaly
133.687°
Eccentric anomaly
134.01581°
Mean motion
3.54782 °/min
Orbital period
101.47 mins
BSTAR
0.000056461
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Other satellites on launch #67 in the year 1971 (1971-08-07 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-03 18:04:10.138Z | 113.445° SE | 2026-06-03 18:07:10.138Z | 79.429° E | 17.393° | 2026-06-03 18:10:10.138Z | 43.855° NE |
| 9 mins | 2026-06-03 19:44:10.138Z | 197.825° SSW | 2026-06-03 19:48:10.138Z | 258.147° W | 40.3° | 2026-06-03 19:53:10.138Z | 350.33° N |
| 8 mins | 2026-06-04 06:23:10.138Z | 27.263° NE | 2026-06-04 06:26:10.138Z | 76.481° E | 30.735° | 2026-06-04 06:31:10.138Z | 148.786° SSE |
| 6 mins | 2026-06-04 08:05:10.138Z | 320.2° NNW | 2026-06-04 08:08:10.138Z | 274.832° WNW | 23.287° | 2026-06-04 08:11:10.138Z | 233.778° WSW |
| 4 mins | 2026-06-04 17:48:10.138Z | 94.292° ESE | 2026-06-04 17:50:10.138Z | 72.045° E | 13.562° | 2026-06-04 17:52:10.138Z | 50.522° ENE |
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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