TEMPSAT 1, 1512
Orbit data source: Space-Track
TEMPSAT 1, 1512 is a payload satellite owned by NRL (US) in LEO that was launched on Fri, 13 Aug 1965 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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1512 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
NRL
Mission
Operational Defense Calibration
Bus & Motor
NRL 14", Unknown motor
Mass
9 kg wet, 9 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 0.2 m
Radar Cross Section
0.102 m², Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 TEMPSAT 1
1 01512U 65065E 25260.93047134 .00000039 00000-0 62548-4 0 9998
2 01512 89.9841 212.7527 0067875 294.0482 133.1783 13.33571810923763Epoch: 2025-09-17T22:19Z
TLE epoch observation values (Epoch: 2025-09-17T22:19:52.723Z)
Latitude
67.86475°
Longitude
-119.27744°
Altitude
1,180.225 km
Speed
7.252 km/s
True Right ascension
14h 11m 09s
True Declination
67° 45' 04"
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
23:18:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,181.359 km
Perigee altitude
1,079.43 km
Semi-major axis
7,508.532 km
Eccentricity
0.00679
Inclination
89.9841°
RAAN
212.7527°
Arg. of periapsis
294.0482°
True anomaly
133.7422°
Mean anomaly
133.1783°
Eccentric anomaly
133.46058°
Mean motion
3.33588 °/min
Orbital period
107.92 mins
BSTAR
0.000062548
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Other satellites on launch #65 in the year 1965 (1965-08-13 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.TEMPSAT 1 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 | 2025-09-18 07:37:11.921Z | 38.201° NE | 2025-09-18 07:41:11.921Z | 73.105° E | 16.651° | 2025-09-18 07:45:11.921Z | 110.183° ESE |
| 12 mins | 2025-09-18 09:24:11.921Z | 358.838° N | 2025-09-18 09:30:11.921Z | 261.715° W | 44.457° | 2025-09-18 09:36:11.921Z | 190.2° SSW |
| 4 mins | 2025-09-18 11:15:11.921Z | 305.38° NW | 2025-09-18 11:16:11.921Z | 296.698° NW | 12.461° | 2025-09-18 11:19:11.921Z | 271.089° WNW |
| 7 mins | 2025-09-18 19:46:11.921Z | 100.333° ESE | 2025-09-18 19:49:11.921Z | 69.13° E | 18.941° | 2025-09-18 19:53:11.921Z | 31.868° NE |
| 12 mins | 2025-09-18 21:30:11.921Z | 187.651° SSW | 2025-09-18 21:36:11.921Z | 281.087° WNW | 43.093° | 2025-09-18 21:42:11.921Z | 351.998° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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