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AC1-001, 66744

Orbit data source: Space-Track

AC1-001, 66744 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 src="https://www.satcat.com/sats-embedded/66744?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/66744?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66744, 2025-276CG

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 (7 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, Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 AC1-001
1 66744U 25276CG  26192.75335563  .00001278  00000-0  65287-4 0  9996
2 66744  97.4198 265.6234 0001261 282.8144  77.2949 15.18449551 34136

Epoch: 2026-07-11T18:04Z

TLE epoch observation values (Epoch: 2026-07-11T18:04:49.926Z)

Latitude

-0.00005°

Longitude

64.75333°

Altitude

513.423 km

Speed

7.607 km/s

True Right ascension

17h 42m 29s

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

19:48:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

508.363 km

Perigee altitude

506.626 km

Semi-major axis

6,885.631 km

Eccentricity

0.00013

Inclination

97.4198°

RAAN

265.6234°

Arg. of periapsis

282.8144°

True anomaly

77.309°

Mean anomaly

77.2949°

Eccentric anomaly

77.30195°

Mean motion

3.79863 °/min

Orbital period

94.77 mins

BSTAR

0.000065287

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

FLOCK 4H 32, 66735

FOSSASAT2E24, 66780

LEMUR-2-CELIJO-SB-PK, 66781

LEMUR-2-STARLIGHT, 66783

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AC1-001 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.
4 mins	2026-07-12 18:22:54.754Z	331.945° NNW	2026-07-12 18:24:54.754Z	276.708° WNW	26.455°	2026-07-12 18:26:54.754Z	234.455° WSW
5 mins	2026-07-13 05:00:54.754Z	172.628° S	2026-07-13 05:02:54.754Z	220.098° SW	44.38°	2026-07-13 05:05:54.754Z	344.918° N

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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 AC1-001, 66744 on other resources

View AC1-001, 66744 on NASA - NSSDCA Website

View AC1-001, 66744 on Heavens-Above

View AC1-001, 66744 on Keep Track

View AC1-001, 66744 on Celestrak

View AC1-001, 66744 on Gunter's Space Page

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

AC1-001, 66744

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-07-11T18:04:49.926Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

AC1-001 Visibility forecast

Co-orbital & Co-planar RSOs

Check out AC1-001, 66744 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago