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SPAWAR-CAL-O, 43766

Orbit data source: Space-Track

SPAWAR-CAL-O, 43766 is a payload satellite owned by SPAWAR (US) in SSO that was launched on Mon, 03 Dec 2018 UTC via an FALCON 9 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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<iframe src="https://www.satcat.com/sats-embedded/43766?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/43766?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

43766, 2018-099J

Orbit

SSO

Country

Related business

United States Navy (US)

Manufacturer

SPAWAR?

Mission

Operational Defense Calibration

Bus & Motor

CUBESAT 1U, Unknown motor

Mass

1 kg wet, 1 kg dry

Launch date (UTC)

2018-12-03 (7 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.015 m², Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 20 hours ago

TLE from 20 hours ago

0 SPAWAR-CAL-O
1 43766U 18099J   25341.15290894  .00026753  00000-0  10017-2 0  9990
2 43766  97.4629  39.3026 0008230 251.5903 108.4442 15.27235286384139

Epoch: 2025-12-07T03:40Z

TLE epoch observation values (Epoch: 2025-12-07T03:40:11.332Z)

Latitude

0.00005°

Longitude

-91.91501°

Altitude

488.971 km

Speed

7.62 km/s

True Right ascension

02h 37m 12s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

21:43:08

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

486.685 km

Perigee altitude

475.395 km

Semi-major axis

6,859.177 km

Eccentricity

0.00082

Inclination

97.4629°

RAAN

39.3026°

Arg. of periapsis

251.5903°

True anomaly

108.53364°

Mean anomaly

108.4442°

Eccentric anomaly

108.48892°

Mean motion

3.82063 °/min

Orbital period

94.23 mins

BSTAR

0.0010017

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Other satellites on launch #99 in the year 2018 (2018-12-03 UTC)

AISTECHSAT-2, 43768

FALCONSAT-6, 43815

EUCROPIS, 43807

ELYUSIUM/LOWER FREE FLYE, 43760 (Decayed)

SPAWAR-CAL-OR, 43778

CSIM, 43793 (Decayed)

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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.

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SPAWAR-CAL-O 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.
5 mins	2025-12-08 03:23:39.834Z	125.614° SE	2025-12-08 03:26:39.834Z	66.418° ENE	22.692°	2025-12-08 03:28:39.834Z	23.743° NE
4 mins	2025-12-08 16:25:39.834Z	55.561° ENE	2025-12-08 16:26:39.834Z	83.768° E	27.59°	2025-12-08 16:29:39.834Z	157.809° S

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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 SPAWAR-CAL-O, 43766 on other resources

View SPAWAR-CAL-O, 43766 on NASA - NSSDCA Website

View SPAWAR-CAL-O, 43766 on Heavens-Above

View SPAWAR-CAL-O, 43766 on Keep Track

View SPAWAR-CAL-O, 43766 on Celestrak

View SPAWAR-CAL-O, 43766 on Gunter's Space Page

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

SPAWAR-CAL-O, 43766

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2025-12-07T03:40:11.332Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #99 in the year 2018 (2018-12-03 UTC)

SPAWAR-CAL-O Visibility forecast

Co-orbital & Co-planar RSOs

Check out SPAWAR-CAL-O, 43766 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago