OPS 5798 (TRANSIT 5B-4), 897
Orbit data source: Space-Track
OPS 5798 (TRANSIT 5B-4), 897 is a payload satellite owned by USN BuWeps (US) in LEO that was launched on Tue, 06 Oct 1964 UTC via a THOR ABLESTAR launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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Identifier
Orbit
Country
USRelated business
Manufacturer
NAFI
Mission
Spacecraft
Bus & Motor
TRANSIT 5, Unknown motor
Mass
~54 kg wet, ~54 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 OPS 5798 (TRANSIT 5B-4)
1 897U 64063B 26149.36094432 .00000067 00000-0 86386-4 0 9994
2 897 90.2367 75.0624 0017882 229.7618 254.0241 13.53733632 42671Epoch: 2026-05-29T08:39Z
TLE epoch observation values (Epoch: 2026-05-29T08:39:45.589Z)
Latitude
56.50348°
Longitude
-121.41416°
Altitude
1,071.756 km
Speed
7.32 km/s
True Right ascension
17h 01m 40s
True Declination
56° 21' 06"
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
03:49:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,068.891 km
Perigee altitude
1,042.305 km
Semi-major axis
7,433.735 km
Eccentricity
0.00179
Inclination
90.2367°
RAAN
75.0624°
Arg. of periapsis
229.7618°
True anomaly
253.82722°
Mean anomaly
254.0241°
Eccentric anomaly
253.92565°
Mean motion
3.38636 °/min
Orbital period
106.31 mins
BSTAR
0.000086386
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Other satellites on launch #63 in the year 1964 (1964-10-06 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.OPS 5798 (TRANSIT 5B-4) 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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-05-29 18:47:51.485Z | 151.154° SSE | 2026-05-29 18:53:51.485Z | 79.168° E | 36.573° | 2026-05-29 18:59:51.485Z | 9.802° NNE |
| 9 mins | 2026-05-29 20:35:51.485Z | 229.054° WSW | 2026-05-29 20:39:51.485Z | 273.426° WNW | 24.317° | 2026-05-29 20:44:51.485Z | 329.266° NNW |
| 7 mins | 2026-05-30 05:58:51.485Z | 50.094° ENE | 2026-05-30 06:01:51.485Z | 82.695° E | 17.807° | 2026-05-30 06:05:51.485Z | 121.181° SE |
| 11 mins | 2026-05-30 07:42:51.485Z | 355.093° N | 2026-05-30 07:47:51.485Z | 295.886° NW | 42.308° | 2026-05-30 07:53:51.485Z | 197.045° SSW |
| 7 mins | 2026-05-30 17:54:51.485Z | 106.097° ESE | 2026-05-30 17:57:51.485Z | 75.695° E | 18.128° | 2026-05-30 18:01:51.485Z | 34.929° NE |
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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