SL-3 DEB, 21126

Orbit data source: Space-Track

SL-3 DEB, 21126 is space debris in LEO originally from a launch on Fri, 28 Aug 1964 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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Iframe URL

https://www.satcat.com/sats-embedded/21126?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21126, 1964-053C

Orbit

LEO

Last TLE update

14 hours ago

Origin

Russian Strategic Rocket Forces (CIS)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1964-08-28 (61 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history

TLE from 14 hours ago

0 SL-3 DEB
1 21126U 64053C   25199.79779344  .00000390  00000-0  86454-4 0  9999
2 21126  65.0776  60.7429 0059281 341.7511 143.7053 14.68985101216960

Epoch: 2025-07-18T19:08Z

TLE epoch observation values (Epoch: 2025-07-18T19:08:49.353Z)

Latitude

47.42724°

Longitude

-13.51091°

Altitude

704.44 km

Speed

7.491 km/s

True Right ascension

14h 02m 09s

True Declination

47° 15' 16"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-60.55584°

Longitude

140.03155°

Altitude

662.548 km

Speed

7.538 km/s

Apparent Right ascension

06h 48m 08s

Apparent Declination

-73° 31' 00"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

21:46:16

Azimuth

161.812° S

Elevation

-50.392°

Doppler factor

Orbital elements

Apogee altitude

704.593 km

Perigee altitude

621.114 km

Semi-major axis

7,040.99 km

Eccentricity

0.00593

Inclination

65.0776°

RAAN

60.7429°

Arg. of periapsis

341.7511°

True anomaly

144.10502°

Mean anomaly

143.7053°

Eccentric anomaly

143.9054°

Mean motion

3.67361 °/min

Orbital period

98 mins

BSTAR

0.000086454

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Other satellites on launch #53 in the year 1964 (1964-08-28 UTC)

COSMOS 44, 876

SL-3 R/B, 877

SL-3 DEB 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.
7 mins	2025-07-19 15:57:06.299Z	180.441° SSW	2025-07-19 16:00:06.299Z	125.839° SE	33.68°	2025-07-19 16:04:06.299Z	47.872° ENE
6 mins	2025-07-19 17:39:06.299Z	273.757° WNW	2025-07-19 17:41:06.299Z	307.195° NW	21.466°	2025-07-19 17:45:06.299Z	6.38° NNE
7 mins	2025-07-20 00:31:06.299Z	353.285° N	2025-07-20 00:34:06.299Z	42.867° NE	28.782°	2025-07-20 00:38:06.299Z	110.805° ESE
7 mins	2025-07-20 02:12:06.299Z	299.507° NW	2025-07-20 02:15:06.299Z	249.39° W	27.105°	2025-07-20 02:19:06.299Z	188.788° 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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Authenticating...

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Check out SL-3 DEB, 21126 on other resources

View SL-3 DEB, 21126 on Heavens-Above

View SL-3 DEB, 21126 on Keep Track

View SL-3 DEB, 21126 on Celestrak

View SL-3 DEB, 21126 on Gunter's Space Page

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