COSMOS 1579 COOLANT, 26521
Orbit data source: Space-Track
COSMOS 1579 COOLANT, 26521 is space debris in LEO originally from a launch on Fri, 29 Jun 1984 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
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
26521 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
CISRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
RCB, Unknown motor
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.050 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 2 months ago
TLE from 2 months ago
0 COSMOS 1579 COOLANT
1 26521U 84069N 26268.58035569 .00000085 00000-0 13564-3 0 9993
2 26521 65.0504 330.1769 0054797 316.0880 43.5835 13.92017729661962Epoch: 2026-09-25T13:55Z
TLE epoch observation values (Epoch: 2026-09-25T13:55:42.731Z)
Latitude
-0.00009°
Longitude
116.84808°
Altitude
894.635 km
Speed
7.42 km/s
True Right ascension
22h 00m 42s
True Declination
0° 00' 00"
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
14:37:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
960.159 km
Perigee altitude
880.174 km
Semi-major axis
7,298.304 km
Eccentricity
0.00548
Inclination
65.0504°
RAAN
330.1769°
Arg. of periapsis
316.088°
True anomaly
44.01855°
Mean anomaly
43.5835°
Eccentric anomaly
43.80081°
Mean motion
3.48105 °/min
Orbital period
103.42 mins
BSTAR
0.00013564
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 #69 in the year 1984 (1984-06-29 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.COSMOS 1579 COOLANT Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-11-10 18:42:55.586Z | 197.353° SSW | 2026-11-10 18:48:55.586Z | 100.309° ESE | 64.826° | 2026-11-10 18:53:55.586Z | 38.217° NE |
| 8 mins | 2026-11-10 20:31:55.586Z | 270.821° WNW | 2026-11-10 20:35:55.586Z | 320.182° NNW | 25.159° | 2026-11-10 20:39:55.586Z | 5.847° NNE |
| 7 mins | 2026-11-11 02:01:55.586Z | 6.91° NNE | 2026-11-11 02:04:55.586Z | 39.9° NE | 18.173° | 2026-11-11 02:08:55.586Z | 79.604° E |
| 10 mins | 2026-11-11 03:47:55.586Z | 332.486° NNW | 2026-11-11 03:51:55.586Z | 14.889° NNE | 76.076° | 2026-11-11 03:57:55.586Z | 144.896° SSE |
| 5 mins | 2026-11-11 05:35:55.586Z | 278.568° WNW | 2026-11-11 05:37:55.586Z | 257.096° W | 16.653° | 2026-11-11 05:40:55.586Z | 225.384° WSW |
| 5 mins | 2026-11-11 17:09:55.586Z | 125.122° SE | 2026-11-11 17:11:55.586Z | 103.958° ESE | 14.457° | 2026-11-11 17:14:55.586Z | 74.076° 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 descending order |
|---|
Authenticating...
Click to sort rows by Event ID header in ascending order | Click to sort rows by Pc header in ascending order | Click to sort rows by Md header in ascending order | 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 TCA header in descending order |
|---|