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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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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 (8 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, Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 14 hours ago

TLE from 14 hours ago

0 SPAWAR-CAL-O
1 43766U 18099J   26206.44260146  .00019248  00000-0  54181-3 0  9992
2 43766  97.4310 270.7725 0009325 146.2728 213.9111 15.36468501419394

Epoch: 2026-07-25T10:37Z

TLE epoch observation values (Epoch: 2026-07-25T10:37:20.766Z)

Latitude

-0°

Longitude

168.28116°

Altitude

464.966 km

Speed

7.631 km/s

True Right ascension

18h 03m 05s

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

14:09:00

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

459.878 km

Perigee altitude

447.137 km

Semi-major axis

6,831.644 km

Eccentricity

0.00093

Inclination

97.431°

RAAN

270.7725°

Arg. of periapsis

146.2728°

True anomaly

213.85154°

Mean anomaly

213.9111°

Eccentric anomaly

213.88132°

Mean motion

3.84375 °/min

Orbital period

93.66 mins

BSTAR

0.00054181

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

SPACEBEE-6, 43818 (Decayed)

ORBWEAVER 2, 43785 (Decayed)

SPACEBEE-5, 43817 (Decayed)

OBJECT BS, 43822

OBJECT T, 43775

PW-SAT2, 43814 (Decayed)

FLOCK 3S 2, 43821 (Decayed)

CSIM, 43793 (Decayed)

OBJECT BA, 43806

OBJECT AZ, 43805 (Decayed)

CENTAURI-1, 43809

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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	2026-07-26 03:57:31.086Z	133.591° SE	2026-07-26 03:59:31.086Z	83.824° E	30.381°	2026-07-26 04:02:31.086Z	8.145° NNE
5 mins	2026-07-26 16:53:31.086Z	33.238° NE	2026-07-26 16:55:31.086Z	88.342° E	34.213°	2026-07-26 16:58:31.086Z	170.349° 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: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-07-25T10:37:20.766Z)

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: 14 hours ago