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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
5397 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
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: 16 hours ago
TLE from 16 hours ago
0 OV1-21 R/B
1 05397U 71067B 25348.93120122 .00000164 00000-0 68530-4 0 9994
2 05397 87.6298 122.7646 0083308 55.3542 305.5463 14.18182192808335Epoch: 2025-12-14T22:20Z
TLE epoch observation values (Epoch: 2025-12-14T22:20:55.785Z)
Latitude
-0.00007°
Longitude
63.69512°
Altitude
799.958 km
Speed
7.471 km/s
True Right ascension
08h 11m 03s
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
13:18:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
888.51 km
Perigee altitude
768.437 km
Semi-major axis
7,206.61 km
Eccentricity
0.00833
Inclination
87.6298°
RAAN
122.7646°
Arg. of periapsis
55.3542°
True anomaly
304.76486°
Mean anomaly
305.5463°
Eccentric anomaly
305.15605°
Mean motion
3.5477 °/min
Orbital period
101.47 mins
BSTAR
0.00006853
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #67 in the year 1971 (1971-08-07 UTC)
Did you know?
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
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-12-15 20:56:24.389Z | 11.155° NNE | 2025-12-15 21:00:24.389Z | 71.945° E | 39.3° | 2025-12-15 21:05:24.389Z | 162.628° S |
| 4 mins | 2025-12-15 22:40:24.389Z | 302.308° NW | 2025-12-15 22:42:24.389Z | 275.817° WNW | 16.345° | 2025-12-15 22:44:24.389Z | 251.843° W |
| 5 mins | 2025-12-16 08:22:24.389Z | 106.366° ESE | 2025-12-16 08:24:24.389Z | 78.821° E | 17.337° | 2025-12-16 08:27:24.389Z | 40.35° NE |
| 8 mins | 2025-12-16 10:02:24.389Z | 208.983° SW | 2025-12-16 10:05:24.389Z | 263.328° W | 35.854° | 2025-12-16 10:10:24.389Z | 347.766° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|