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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 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 (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 AC1-001
1 66744U 25276CG  26147.14855981  .00002821  00000-0  14109-3 0  9991
2 66744  97.4208 220.8765 0004481  83.2784 276.8960 15.18237718 27211

Epoch: 2026-05-27T03:33Z

TLE epoch observation values (Epoch: 2026-05-27T03:33:55.567Z)

Latitude

-0.00003°

Longitude

-77.31683°

Altitude

513.885 km

Speed

7.607 km/s

True Right ascension

14h 43m 30s

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

04:46:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

511.221 km

Perigee altitude

505.05 km

Semi-major axis

6,886.272 km

Eccentricity

0.00045

Inclination

97.4208°

RAAN

220.8765°

Arg. of periapsis

83.2784°

True anomaly

276.84502°

Mean anomaly

276.896°

Eccentric anomaly

276.87051°

Mean motion

3.7981 °/min

Orbital period

94.78 mins

BSTAR

0.00014109

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

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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.
7 mins	2026-05-28 04:59:39.347Z	169.821° S	2026-05-28 05:02:39.347Z	190.025° SSW	43.439°	2026-05-28 05:06:39.347Z	346.41° N
5 mins	2026-05-28 18:06:39.347Z	345.891° N	2026-05-28 18:08:39.347Z	260.398° W	36.408°	2026-05-28 18:11:39.347Z	210.292° SW

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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 AC1-001, 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: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-05-27T03:33:55.567Z)

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: 16 hours ago