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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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https://www.satcat.com/sats-embedded/1512?theme=dark&initialShowStats=false

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Identifier

1512, 1965-065E

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

NRL

Mission

Operational spacecraft

Bus & Motor

NRL 14", Unknown motor

Mass

9 kg wet, 9 kg dry

Launch date (UTC)

1965-08-13 (61 years ago)

Launch vehicle

THOR ABLESTAR

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 18 hours ago

TLE from 18 hours ago

0 TEMPSAT 1
1 01512U 65065E   26050.41660334  .00000033  00000-0  47818-4 0  9999
2 01512  89.9900 212.5976 0068574 218.2151 205.9731 13.33587972944358

Epoch: 2026-02-19T09:59Z

TLE epoch observation values (Epoch: 2026-02-19T09:59:54.528Z)

Latitude

63.92912°

Longitude

-86.72747°

Altitude

1,190.733 km

Speed

7.242 km/s

True Right ascension

14h 10m 28s

True Declination

63° 48' 03"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

06:49:33

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,181.822 km

Perigee altitude

1,078.845 km

Semi-major axis

7,508.471 km

Eccentricity

0.00686

Inclination

89.99°

RAAN

212.5976°

Arg. of periapsis

218.2151°

True anomaly

205.63159°

Mean anomaly

205.9731°

Eccentric anomaly

205.80208°

Mean motion

3.33592 °/min

Orbital period

107.92 mins

BSTAR

0.000047818

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Other satellites on launch #65 in the year 1965 (1965-08-13 UTC)

TRANSIT 5B-7 DEB, 11855 (Decayed)

OPS 8464 DEB *, 2335 (Decayed)

TRANSIT 5B-7 DEB, 3809 (Decayed)

THOR ABLESTAR DEB, 5363 (Decayed)

THOR ABLESTAR DEB, 6290 (Decayed)

OPS 8464 (TRANSIT 5B-7), 1514

THOR ABLESTAR DEB, 1521

DODECAPOLE 2 DEB, 41734

THOR ABLESTAR DEB, 1504

CALSPHERE 4(A), 1520

DODECAPOLE 2, 1510

THOR ABLESTAR DEB, 3810

NAVSPASUR ROD 1, 1515

THOR ABLESTAR DEB, 1511

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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.
6 mins	2026-02-20 09:15:37.580Z	93.816° ESE	2026-02-20 09:18:37.580Z	67.919° E	13.79°	2026-02-20 09:21:37.580Z	42.078° NE
12 mins	2026-02-20 10:59:37.580Z	172.92° S	2026-02-20 11:05:37.580Z	28.512° NE	44.631°	2026-02-20 11:11:37.580Z	359.218° N
6 mins	2026-02-20 12:51:37.580Z	263.163° W	2026-02-20 12:53:37.580Z	281.758° WNW	15.393°	2026-02-20 12:57:37.580Z	317.168° NNW
11 mins	2026-02-20 22:18:37.580Z	20.751° NNE	2026-02-20 22:23:37.580Z	83.319° E	34.602°	2026-02-20 22:29:37.580Z	154.889° SSE
10 mins	2026-02-21 00:06:37.580Z	335.751° NNW	2026-02-21 00:11:37.580Z	278.013° WNW	26.991°	2026-02-21 00:16:37.580Z	227.411° WSW

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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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Check out TEMPSAT 1, 1512 on other resources

View TEMPSAT 1, 1512 on NASA - NSSDCA Website

View TEMPSAT 1, 1512 on Heavens-Above

View TEMPSAT 1, 1512 on Keep Track

View TEMPSAT 1, 1512 on Celestrak

View TEMPSAT 1, 1512 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

TEMPSAT 1, 1512

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-02-19T09:59:54.528Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #65 in the year 1965 (1965-08-13 UTC)

TEMPSAT 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out TEMPSAT 1, 1512 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 18 hours ago