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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
21126 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 SL-3 DEB
1 21126U 64053C 25243.22122372 .00000997 00000-0 18596-3 0 9994
2 21126 65.0773 291.8877 0063926 326.3987 104.4859 14.69046744223348Epoch: 2025-08-31T05:18Z
TLE epoch observation values (Epoch: 2025-08-31T05:18:33.729Z)
Latitude
59.49304°
Longitude
-75.73363°
Altitude
684.754 km
Speed
7.514 km/s
True Right ascension
22h 54m 12s
True Declination
59° 20' 27"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
04:23:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
707.665 km
Perigee altitude
617.647 km
Semi-major axis
7,040.793 km
Eccentricity
0.00639
Inclination
65.0773°
RAAN
291.8877°
Arg. of periapsis
326.3987°
True anomaly
105.19372°
Mean anomaly
104.4859°
Eccentric anomaly
104.83995°
Mean motion
3.67376 °/min
Orbital period
97.99 mins
BSTAR
0.00018596
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #53 in the year 1964 (1964-08-28 UTC)
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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-08-31 13:40:58.524Z | 339.053° N | 2025-08-31 13:44:58.524Z | 37.799° NE | 37.973° | 2025-08-31 13:49:58.524Z | 131.177° SE |
| 5 mins | 2025-08-31 15:23:58.524Z | 278.254° WNW | 2025-08-31 15:25:58.524Z | 248.239° W | 18.118° | 2025-08-31 15:28:58.524Z | 209.026° SW |
| 5 mins | 2025-09-01 03:59:58.524Z | 149.072° SSE | 2025-09-01 04:01:58.524Z | 117.221° SE | 20.403° | 2025-09-01 04:04:58.524Z | 68.814° E |
| 7 mins | 2025-09-01 05:39:58.524Z | 246.053° WSW | 2025-09-01 05:42:58.524Z | 310.186° NW | 33.064° | 2025-09-01 05:46:58.524Z | 16.328° NNE |
| 5 mins | 2025-09-01 12:33:58.524Z | 15.008° NNE | 2025-09-01 12:35:58.524Z | 46.397° ENE | 19.439° | 2025-09-01 12:38:58.524Z | 87.952° E |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
|---|
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
|---|
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|