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SEAHAWK-1, 43820

Orbit data source: Space-Track

SEAHAWK-1, 43820 is an American payload satellite 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 URL

https://www.satcat.com/sats-embedded/43820?theme=dark&initialShowStats=false

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Identifier

43820, 2018-099BQ

Orbit

SSO

Country

Related business

University of North Carolina, Wilmington (US)

Manufacturer

AAC ClydeSpace

Mission

Operational Amateur Technology

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

5 kg wet, 5 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 + 4 Pan, 1.0 m

Radar Cross Section

0.035 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 3 days ago

TLE from 3 days ago

0 SEAHAWK-1
1 43820U 18099BQ  26170.69895889  .00007196  00000-0  31024-3 0  9998
2 43820  97.3950 223.1462 0006611 304.4016  55.6595 15.22840885412919

Epoch: 2026-06-19T16:46Z

TLE epoch observation values (Epoch: 2026-06-19T16:46:30.048Z)

Latitude

-0.00001°

Longitude

63.59681°

Altitude

497.808 km

Speed

7.617 km/s

True Right ascension

14h 52m 35s

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

00:50:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

498.781 km

Perigee altitude

489.695 km

Semi-major axis

6,872.375 km

Eccentricity

0.00066

Inclination

97.395°

RAAN

223.1462°

Arg. of periapsis

304.4016°

True anomaly

55.72208°

Mean anomaly

55.6595°

Eccentric anomaly

55.69079°

Mean motion

3.80963 °/min

Orbital period

94.5 mins

BSTAR

0.00031024

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

BRIO, 43813 (Decayed)

OBJECT AV, 43801 (Decayed)

FLOCK 3S 1, 43769 (Decayed)

OBJECT AH, 43789 (Decayed)

ORBWEAVER 2, 43785 (Decayed)

MOVE-II, 43780 (Decayed)

HIBER-2, 43774 (Decayed)

KAZSCISAT-1, 43787 (Decayed)

VESTA-1, 43781 (Decayed)

SPACEBEE-5, 43817 (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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SEAHAWK-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.
7 mins	2026-06-22 16:17:29.549Z	14.911° NNE	2026-06-22 16:21:29.549Z	156.835° SSE	42.824°	2026-06-22 16:24:29.549Z	187.956° SSW
4 mins	2026-06-23 02:56:29.549Z	105.775° ESE	2026-06-23 02:57:29.549Z	80.101° E	24.291°	2026-06-23 03:00:29.549Z	16.075° 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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Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out SEAHAWK-1, 43820 on other resources

View SEAHAWK-1, 43820 on NASA - NSSDCA Website

View SEAHAWK-1, 43820 on Heavens-Above

View SEAHAWK-1, 43820 on Keep Track

View SEAHAWK-1, 43820 on Celestrak

View SEAHAWK-1, 43820 on Gunter's Space Page

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

SEAHAWK-1, 43820

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-19T16:46:30.048Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SEAHAWK-1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out SEAHAWK-1, 43820 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 days ago