OBJECT AB, 57191

Orbit data source: Space-Track

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Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.

OBJECT AB, 57191 is a satellite in SSO that was launched on Tue, 27 Jun 2023 UTC via a SOYUZ-2-1B launch vehicle from the Vostochny Cosmodrome (VOSTO). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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Iframe URL

https://www.satcat.com/sats-embedded/57191?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

57191, 2023-091AB

Orbit

SSO

Last TLE update

6 hours ago

Origin

Peter the Great St.Petersburg Polytechnic University (TBD)

Manufacturer

STTs

Mission

Operational Amateur Technology

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

5.07 kg wet, 5.07 kg dry

Launch date (UTC)

2023-06-27 (2 years ago)

Launch vehicle

SOYUZ-2-1B

Launch site

Vostochny Cosmodrome (VOSTO)

Object type

Unknown

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.035 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 6 hours ago

0 OBJECT AB
1 57191U 23091AB  25201.10527325  .00004145  00000-0  22620-3 0  9992
2 57191  97.5557 256.0431 0016697 196.5381 163.5308 15.14789356113602

Epoch: 2025-07-20T02:31Z

TLE epoch observation values (Epoch: 2025-07-20T02:31:35.608Z)

Latitude

-0.00008°

Longitude

-79.98806°

Altitude

535.749 km

Speed

7.589 km/s

True Right ascension

17h 04m 10s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

17.29193°

Longitude

-82.07601°

Altitude

535.594 km

Speed

7.59 km/s

Apparent Right ascension

14h 07m 42s

Apparent Declination

-16° 07' 22"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

21:49:47

Azimuth

273.472° WNW

Elevation

-29.712°

Doppler factor

Orbital elements

Apogee altitude

530.113 km

Perigee altitude

507.082 km

Semi-major axis

6,896.734 km

Eccentricity

0.00167

Inclination

97.5557°

RAAN

256.0431°

Arg. of periapsis

196.5381°

True anomaly

163.58493°

Mean anomaly

163.5308°

Eccentric anomaly

163.55788°

Mean motion

3.78947 °/min

Orbital period

95 mins

BSTAR

0.0002262

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Other satellites on launch #91 in the year 2023 (2023-06-27 UTC)

OBJECT AJ, 57198 (Decayed)

OBJECT AB Visibility forecast

Observer location: undefined°, undefined°

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	2025-07-20 15:47:40.936Z	51.935° ENE	2025-07-20 15:49:40.936Z	90.425° ESE	20.049°	2025-07-20 15:52:40.936Z	145.626° SSE
4 mins	2025-07-20 17:22:40.936Z	319.838° NNW	2025-07-20 17:23:40.936Z	297.292° NW	21.1°	2025-07-20 17:26:40.936Z	239.752° WSW
6 mins	2025-07-21 04:01:40.936Z	189.604° SSW	2025-07-21 04:03:40.936Z	237.108° WSW	37.604°	2025-07-21 04:07:40.936Z	337.529° N

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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Authenticating...

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Check out OBJECT AB, 57191 on other resources

View OBJECT AB, 57191 on Heavens-Above

View OBJECT AB, 57191 on Keep Track

View OBJECT AB, 57191 on Celestrak

View OBJECT AB, 57191 on Gunter's Space Page

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