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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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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, 0.087 m

Radar Cross Section

0.015 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 SPAWAR-CAL-O
1 43766U 18099J   26304.15559477  .00016767  00000-0  42242-3 0  9995
2 43766  97.4160   9.6151 0007941 152.2715 207.8956 15.39935561434411

Epoch: 2026-10-31T03:44Z

TLE epoch observation values (Epoch: 2026-10-31T03:44:03.388Z)

Latitude

0.00002°

Longitude

-85.86439°

Altitude

454.208 km

Speed

7.637 km/s

True Right ascension

00h 38m 27s

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

18:47:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

448.656 km

Perigee altitude

437.823 km

Semi-major axis

6,821.376 km

Eccentricity

0.00079

Inclination

97.416°

RAAN

9.6151°

Arg. of periapsis

152.2715°

True anomaly

207.85306°

Mean anomaly

207.8956°

Eccentric anomaly

207.87433°

Mean motion

3.85243 °/min

Orbital period

93.45 mins

BSTAR

0.00042242

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

ORBWEAVER 2, 43785 (Decayed)

LACMA ENOCH, 43777 (Decayed)

CAPELLA-1, 43791 (Decayed)

HAWK-B, 43794

SPACEBEE-6, 43818 (Decayed)

EXCITE, 43819

CSIM, 43793 (Decayed)

ESEO, 43792

EAGLET 1, 43790

CORVUS BC4, 43767

POLAR SCOUT KODIAK, 43764 (Decayed)

UPPER FREE FLYER, 43763

STPSAT-5, 43762

SPACEBEE-7, 43816 (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	2026-11-01 04:48:51.466Z	185.274° SSW	2026-11-01 04:51:51.466Z	287.76° WNW	48.79°	2026-11-01 04:53:51.466Z	333.211° NNW
5 mins	2026-11-01 17:43:51.466Z	349.08° N	2026-11-01 17:45:51.466Z	280.745° WNW	44.315°	2026-11-01 17:48:51.466Z	212.955° SW

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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: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2026-10-31T03:44:03.388Z)

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: 19 hours ago