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USA 568, 66551

Orbit data source: Space-Track

USA 568, 66551 is a payload satellite owned by USSF SSC (US) in LEO that was launched on Tue, 30 Jul 2024 UTC via an ATLAS V 551 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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<iframe src="https://www.satcat.com/sats-embedded/66551?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/66551?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66551, 2024-134K

Orbit

LEO

Country

Related business

United States Space Force (US)

Manufacturer

Unknown (US)

Mission

Operational Defense Classified

Bus & Motor

UNKNOWN, Unknown motor

Mass

~100 kg wet, 100 kg dry

Launch date (UTC)

2024-07-30 (2 years ago)

Launch vehicle

ATLAS V 551

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 14.5 m

Radar Cross Section

RCS unknown

Expand to show TLE details & history
Last TLE update: 2 months ago

TLE from 2 months ago

0 USA 568
1 66551U 25271AE  25336.66670139 -.01709685  00000-0 -74303-2 0  9994
2 66551  53.1571 236.7807 0000717 110.7411 313.9012 15.87051116  2624

Epoch: 2025-12-02T16:00Z

TLE epoch observation values (Epoch: 2025-12-02T16:00:03.000Z)

Latitude

46.46158°

Longitude

-23.34765°

Altitude

315.217 km

Speed

7.725 km/s

True Right ascension

19h 13m 39s

True Declination

46° 16' 42"

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

15:57:21

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

311.298 km

Perigee altitude

310.339 km

Semi-major axis

6,688.956 km

Eccentricity

0.00007

Inclination

53.1571°

RAAN

236.7807°

Arg. of periapsis

110.7411°

True anomaly

313.89528°

Mean anomaly

313.9012°

Eccentric anomaly

313.89824°

Mean motion

3.9674 °/min

Orbital period

90.74 mins

BSTAR

-0.0074303

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Other satellites on launch #134 in the year 2024 (2024-07-30 UTC)

ATLAS 5 CENTAUR DEB, 61868

ATLAS 5 CENTAUR DEB, 60581

ATLAS 5 CENTAUR R/B, 60325

ATLAS 5 CENTAUR DEB, 60582

USA 398, 60324

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USA 568 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	2026-02-16 02:10:35.891Z	121.973° SE	2026-02-16 02:12:35.891Z	314.737° NW	44.032°	2026-02-16 02:14:35.891Z	305.746° NW
4 mins	2026-02-16 02:45:35.891Z	131.419° SE	2026-02-16 02:47:35.891Z	303.216° NW	44.373°	2026-02-16 02:49:35.891Z	310.336° NW
4 mins	2026-02-16 02:57:35.891Z	134.884° SE	2026-02-16 02:59:35.891Z	300.098° NW	44.114°	2026-02-16 03:01:35.891Z	311.802° NW
4 mins	2026-02-16 03:09:35.891Z	138.079° SSE	2026-02-16 03:11:35.891Z	293.389° NW	44.261°	2026-02-16 03:13:35.891Z	312.934° NW
4 mins	2026-02-16 03:46:35.891Z	149.128° SSE	2026-02-16 03:48:35.891Z	283.034° WNW	43.815°	2026-02-16 03:50:35.891Z	316.35° NNW
4 mins	2026-02-16 04:24:35.891Z	157.466° SSE	2026-02-16 04:26:35.891Z	256.357° W	43.738°	2026-02-16 04:28:35.891Z	316.531° NNW
4 mins	2026-02-16 04:37:35.891Z	160.346° S	2026-02-16 04:39:35.891Z	251.14° W	43.496°	2026-02-16 04:41:35.891Z	316.258° NNW
4 mins	2026-02-16 05:04:35.891Z	174.903° S	2026-02-16 05:05:35.891Z	210.945° SW	42.212°	2026-02-16 05:08:35.891Z	321.4° NNW
4 mins	2026-02-16 05:31:35.891Z	176.546° S	2026-02-16 05:33:35.891Z	256.97° W	41.552°	2026-02-16 05:35:35.891Z	317.531° NNW
4 mins	2026-02-16 05:45:35.891Z	181.607° SSW	2026-02-16 05:47:35.891Z	260.272° W	40.822°	2026-02-16 05:49:35.891Z	318.345° NNW
4 mins	2026-02-16 05:59:35.891Z	182.518° SSW	2026-02-16 06:01:35.891Z	253.969° W	40.291°	2026-02-16 06:03:35.891Z	315.752° NNW
4 mins	2026-02-16 06:14:35.891Z	202.411° SSW	2026-02-16 06:15:35.891Z	239.479° WSW	39.462°	2026-02-16 06:18:35.891Z	326.344° NNW
4 mins	2026-02-16 06:28:35.891Z	191.833° SSW	2026-02-16 06:30:35.891Z	259.114° W	38.467°	2026-02-16 06:32:35.891Z	316.541° NNW
4 mins	2026-02-16 06:43:35.891Z	200.4° SSW	2026-02-16 06:45:35.891Z	267.336° W	37.094°	2026-02-16 06:47:35.891Z	319.988° NNW
4 mins	2026-02-16 06:58:35.891Z	203.221° SW	2026-02-16 07:00:35.891Z	266.464° W	36.036°	2026-02-16 07:02:35.891Z	318.958° NNW
5 mins	2026-02-16 07:13:35.891Z	200.144° SSW	2026-02-16 07:15:35.891Z	257.645° W	35.099°	2026-02-16 07:18:35.891Z	331.761° NNW
4 mins	2026-02-16 07:29:35.891Z	214.248° SW	2026-02-16 07:30:35.891Z	241.927° WSW	33.26°	2026-02-16 07:33:35.891Z	321.279° NNW
4 mins	2026-02-16 07:45:35.891Z	221.761° SW	2026-02-16 07:46:35.891Z	248.943° W	31.906°	2026-02-16 07:49:35.891Z	324.184° NNW
4 mins	2026-02-16 08:01:35.891Z	221.831° SW	2026-02-16 08:02:35.891Z	247.402° WSW	29.944°	2026-02-16 08:05:35.891Z	321.259° NNW
5 mins	2026-02-16 08:17:35.891Z	215.033° SW	2026-02-16 08:19:35.891Z	263.843° W	28.279°	2026-02-16 08:22:35.891Z	331.881° NNW
4 mins	2026-02-16 08:34:35.891Z	223.311° SW	2026-02-16 08:36:35.891Z	270.682° WNW	25.949°	2026-02-16 08:38:35.891Z	316.091° NNW
5 mins	2026-02-16 08:51:35.891Z	223.77° SW	2026-02-16 08:53:35.891Z	268.869° W	23.659°	2026-02-16 08:56:35.891Z	333.212° NNW
4 mins	2026-02-16 09:09:35.891Z	237.4° WSW	2026-02-16 09:10:35.891Z	259.114° W	20.898°	2026-02-16 09:13:35.891Z	323.018° NNW
4 mins	2026-02-16 09:27:35.891Z	242.15° WSW	2026-02-16 09:28:35.891Z	263.019° W	18.069°	2026-02-16 09:31:35.891Z	324.654° NNW
5 mins	2026-02-16 12:19:35.891Z	55.768° ENE	2026-02-16 12:21:35.891Z	87.756° E	14.906°	2026-02-16 12:24:35.891Z	135.151° SSE

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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 USA 568, 66551 on other resources

View USA 568, 66551 on NASA - NSSDCA Website

View USA 568, 66551 on Heavens-Above

View USA 568, 66551 on Keep Track

View USA 568, 66551 on Celestrak

View USA 568, 66551 on Gunter's Space Page

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

USA 568, 66551

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 months ago

TLE from 2 months ago

TLE epoch observation values (Epoch: 2025-12-02T16:00:03.000Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #134 in the year 2024 (2024-07-30 UTC)

USA 568 Visibility forecast

Co-orbital & Co-planar RSOs

Check out USA 568, 66551 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 months ago