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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: 1 day ago

TLE from 1 day ago

0 SPAWAR-CAL-O
1 43766U 18099J   26219.14007037  .00010943  00000-0  30449-3 0  9995
2 43766  97.4292 283.6011 0009376 108.2186 252.0079 15.36962190421344

Epoch: 2026-08-07T03:21Z

TLE epoch observation values (Epoch: 2026-08-07T03:21:42.079Z)

Latitude

-0.00011°

Longitude

-82.49426°

Altitude

460.196 km

Speed

7.635 km/s

True Right ascension

18h 54m 24s

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

00:34:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

458.447 km

Perigee altitude

445.639 km

Semi-major axis

6,830.18 km

Eccentricity

0.00094

Inclination

97.4292°

RAAN

283.6011°

Arg. of periapsis

108.2186°

True anomaly

251.90575°

Mean anomaly

252.0079°

Eccentric anomaly

251.95682°

Mean motion

3.84499 °/min

Orbital period

93.63 mins

BSTAR

0.00030449

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

OBJECT Q, 43772 (Decayed)

NEXTSAT-1, 43811

POLAR SCOUT KODIAK, 43764

OBJECT AH, 43789 (Decayed)

KAZSCISAT-1, 43787 (Decayed)

SIRION PATHFINDER-2, 43759

OBJECT AZ, 43805 (Decayed)

UPPER FREE FLYER, 43763

STPSAT-5, 43762

SPACEBEE-5, 43817 (Decayed)

BRIO, 43813 (Decayed)

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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	2026-08-08 17:25:19.390Z	2.607° NNE	2026-08-08 17:28:19.390Z	244.858° WSW	39.439°	2026-08-08 17:30:19.390Z	206.384° SW
4 mins	2026-08-09 03:57:19.390Z	119.859° SE	2026-08-09 03:58:19.390Z	92.078° ESE	27.778°	2026-08-09 04:01:19.390Z	11.75° NNE

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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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-08-07T03:21:42.079Z)

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: 1 day ago