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AC1-003, 66689

Orbit data source: Space-Track

AC1-003, 66689 is a UK payload satellite in SSO that was launched on Fri, 28 Nov 2025 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/66689?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66689, 2025-276Z

Orbit

SSO

Country

Related business

BAE Systems Digital Intelligence (Detica) (UK)

Manufacturer

INSBAE

Mission

Operational Commercial Sigint/Imaging

Bus & Motor

P10, Unknown motor

Mass

140 kg wet, 140 kg dry

Launch date (UTC)

2025-11-28 (6 months ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Trap Box + Cyl, 0.5 m

Radar Cross Section

0.655 m²

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 AC1-003
1 66689U 25276Z   26147.16238073  .00002617  00000-0  13156-3 0  9992
2 66689  97.4211 220.8585 0004490  89.2770 270.8978 15.18119624 27212

Epoch: 2026-05-27T03:53Z

TLE epoch observation values (Epoch: 2026-05-27T03:53:49.695Z)

Latitude

-0.00005°

Longitude

-82.32398°

Altitude

514.564 km

Speed

7.606 km/s

True Right ascension

14h 43m 26s

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

04:47:18

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

511.585 km

Perigee altitude

505.401 km

Semi-major axis

6,886.63 km

Eccentricity

0.00045

Inclination

97.4211°

RAAN

220.8585°

Arg. of periapsis

89.277°

True anomaly

270.84635°

Mean anomaly

270.8978°

Eccentric anomaly

270.87208°

Mean motion

3.79781 °/min

Orbital period

94.79 mins

BSTAR

0.00013156

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Other satellites on launch #276 in the year 2025 (2025-11-28 UTC)

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AC1-003 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.
6 mins	2026-05-28 05:20:19.273Z	194.748° SSW	2026-05-28 05:23:19.273Z	284.148° WNW	33.12°	2026-05-28 05:26:19.273Z	333.929° NNW
4 mins	2026-05-28 18:26:19.273Z	331.253° NNW	2026-05-28 18:28:19.273Z	279.654° WNW	25.001°	2026-05-28 18:30:19.273Z	237.623° WSW

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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 AC1-003, 66689 on other resources

View AC1-003, 66689 on NASA - NSSDCA Website

View AC1-003, 66689 on Heavens-Above

View AC1-003, 66689 on Keep Track

View AC1-003, 66689 on Celestrak

View AC1-003, 66689 on Gunter's Space Page

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

AC1-003, 66689

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-05-27T03:53:49.695Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #276 in the year 2025 (2025-11-28 UTC)

AC1-003 Visibility forecast

Co-orbital & Co-planar RSOs

Check out AC1-003, 66689 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago