OPS 9845 (DMSP 5D-2 F6), 13736
Orbit data source: Space-Track
OPS 9845 (DMSP 5D-2 F6), 13736 is a payload satellite owned by USAF SD (US) in SSO that was launched on Tue, 21 Dec 1982 UTC via an ATLAS E 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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13736 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
RCA/East Windsor
Mission
Non-operational Defense Weather
Bus & Motor
BLOCK 5D, STAR 37S
Mass
1,474 kg wet, 760 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 1 Pan, 3.5 m
Radar Cross Section
9.012 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 OPS 9845 (DMSP 5D-2 F6)
1 13736U 82118A 25261.05077004 .00000180 00000-0 86002-4 0 9998
2 13736 98.5939 86.9814 0008398 50.8701 309.3227 14.30360252226103Epoch: 2025-09-18T01:13Z
TLE epoch observation values (Epoch: 2025-09-18T01:13:06.531Z)
Latitude
-0.00001°
Longitude
71.48626°
Altitude
789.647 km
Speed
7.461 km/s
True Right ascension
05h 47m 55s
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
15:15:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
793.684 km
Perigee altitude
781.648 km
Semi-major axis
7,165.803 km
Eccentricity
0.00084
Inclination
98.5939°
RAAN
86.9814°
Arg. of periapsis
50.8701°
True anomaly
309.2482°
Mean anomaly
309.3227°
Eccentric anomaly
309.28546°
Mean motion
3.57805 °/min
Orbital period
100.61 mins
BSTAR
0.000086002
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Other satellites on launch #118 in the year 1982 (1982-12-21 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 9845 (DMSP 5D-2 F6) 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-09-19 01:17:38.645Z | 16.139° NNE | 2025-09-19 01:22:38.645Z | 141.694° SSE | 44.237° | 2025-09-19 01:26:38.645Z | 189.649° SSW |
| 9 mins | 2025-09-19 12:35:38.645Z | 173.294° S | 2025-09-19 12:39:38.645Z | 259.474° W | 43.963° | 2025-09-19 12:44:38.645Z | 342.912° N |
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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