ONEWEB-0661, 55821

Orbit data source: Space-Track

ONEWEB-0661, 55821 is a payload satellite owned by One Web (NAA) (UK) in LEO that was launched on Thu, 09 Mar 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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/55821?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55821, 2023-029AB

Orbit

LEO

Country

Related business

Eutelsat Communications (FR)

Manufacturer

One Web

Mission

Operational Commercial Communications

Bus & Motor

ARROW, Unknown motor

Mass

148 kg wet, ~140 kg dry

Launch date (UTC)

2023-03-09 (3 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Trap Box + 2 Pan, 6.7 m

Radar Cross Section

3.464 m², Large (>1 m²)

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

TLE from 20 hours ago

0 ONEWEB-0661
1 55821U 23029AB  26111.91050781  .00000168  00000-0  41856-3 0  9991
2 55821  87.8919 300.9803 0002093  92.5816 267.5553 13.14502653151991

Epoch: 2026-04-21T21:51Z

TLE epoch observation values (Epoch: 2026-04-21T21:51:07.874Z)

Latitude

-0.00007°

Longitude

123.21798°

Altitude

1,208.753 km

Speed

7.25 km/s

True Right ascension

20h 03m 55s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

01:05:21

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,204.491 km

Perigee altitude

1,201.318 km

Semi-major axis

7,581.042 km

Eccentricity

0.00021

Inclination

87.8919°

RAAN

300.9803°

Arg. of periapsis

92.5816°

True anomaly

267.53134°

Mean anomaly

267.5553°

Eccentric anomaly

267.54332°

Mean motion

3.28814 °/min

Orbital period

109.48 mins

BSTAR

0.00041856

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Other satellites on launch #29 in the year 2023 (2023-03-09 UTC)

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ONEWEB-0661 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.
13 mins	2026-04-23 00:01:35.288Z	12.842° NNE	2026-04-23 00:08:35.288Z	93.728° ESE	35.188°	2026-04-23 00:14:35.288Z	153.586° SSE
11 mins	2026-04-23 01:52:35.288Z	333.557° NNW	2026-04-23 01:57:35.288Z	279.534° WNW	27.784°	2026-04-23 02:03:35.288Z	222.653° SW
12 mins	2026-04-23 12:19:35.288Z	151.299° SSE	2026-04-23 12:25:35.288Z	73.58° E	37.001°	2026-04-23 12:31:35.288Z	12.896° NNE
10 mins	2026-04-23 14:10:35.288Z	232.62° WSW	2026-04-23 14:14:35.288Z	274.598° WNW	25.86°	2026-04-23 14:20:35.288Z	336.21° NNW

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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 ONEWEB-0661, 55821 on other resources

View ONEWEB-0661, 55821 on NASA - NSSDCA Website

View ONEWEB-0661, 55821 on Heavens-Above

View ONEWEB-0661, 55821 on Keep Track

View ONEWEB-0661, 55821 on Celestrak

View ONEWEB-0661, 55821 on Gunter's Space Page

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

ONEWEB-0661, 55821

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: 2026-04-21T21:51:07.874Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #29 in the year 2023 (2023-03-09 UTC)

ONEWEB-0661 Visibility forecast

Co-orbital & Co-planar RSOs

Check out ONEWEB-0661, 55821 on other resources

Documentation

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