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SENTRY, 59140

Orbit data source: Space-Track

SENTRY, 59140 is a payload satellite owned by Quantum Space (US) in SSO that was launched on Mon, 04 Mar 2024 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/59140?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/59140?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

59140, 2024-043AU

Orbit

SSO

Country

Related business

Quantum Space (US)

Manufacturer

Quantum Space

Mission

Operational Commercial Technology

Bus & Motor

CUBESAT 6U, Unknown motor

Mass

~10 kg wet, ~10 kg dry

Launch date (UTC)

2024-03-04 (2 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 0.1 m

Radar Cross Section

0.080 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SENTRY
1 59140U 24043AU  25289.19454634  .00055522  00000-0  85825-3 0  9994
2 59140  97.5234  67.8112 0005591 334.6587  25.4391 15.53903598 90407

Epoch: 2025-10-16T04:40Z

TLE epoch observation values (Epoch: 2025-10-16T04:40:08.803Z)

Latitude

-0.00005°

Longitude

-27.18324°

Altitude

405.049 km

Speed

7.67 km/s

True Right ascension

04h 31m 14s

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

08:27:45

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

406.058 km

Perigee altitude

398.477 km

Semi-major axis

6,780.405 km

Eccentricity

0.00056

Inclination

97.5234°

RAAN

67.8112°

Arg. of periapsis

334.6587°

True anomaly

25.46664°

Mean anomaly

25.4391°

Eccentric anomaly

25.45287°

Mean motion

3.8874 °/min

Orbital period

92.61 mins

BSTAR

0.00085825

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Other satellites on launch #43 in the year 2024 (2024-03-04 UTC)

LEMUR 2 FELDHUS, 59116 (Decayed)

OBJECT M, 59109 (Decayed)

OBJECT AY, 59144 (Decayed)

HORACIO, 59098

JACKAL-02, 59134

MH-1, 59145 (Decayed)

TIGER-8, 59120

MUSAT2, 59099

LEMUR 2 JOHNNYTRUONG, 59146

LEMUR 2 CHARLIE-ROSE, 59115 (Decayed)

LEMUR 2 ROCINANTE, 59147

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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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SENTRY 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.
5 mins	2025-10-16 22:13:54.126Z	13.585° NNE	2025-10-16 22:15:54.126Z	28.219° NE	44.103°	2025-10-16 22:18:54.126Z	191.553° SSW

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 SENTRY, 59140 on other resources

View SENTRY, 59140 on NASA - NSSDCA Website

View SENTRY, 59140 on Heavens-Above

View SENTRY, 59140 on Keep Track

View SENTRY, 59140 on Celestrak

View SENTRY, 59140 on Gunter's Space Page

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

SENTRY, 59140

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2025-10-16T04:40:08.803Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #43 in the year 2024 (2024-03-04 UTC)

SENTRY Visibility forecast

Co-orbital & Co-planar RSOs

Check out SENTRY, 59140 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago