SL-3 R/B, 877
Orbit data source: Space-Track
SL-3 R/B, 877 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
877 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Last TLE update
21 hours ago
Origin
Manufacturer
Progress
Mission
Spacecraft
Bus & Motor
BLOK-E, Unknown motor
Mass
1,440 kg wet, 1,440 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 3.8 m
Radar Cross Section
10.414 m², Large (>1 m²)
Expand to show TLE details & history
TLE from 21 hours ago
0 SL-3 R/B
1 00877U 64053B 25185.79895080 .00000108 00000-0 45768-4 0 9990
2 00877 65.0785 337.8015 0056333 21.1012 339.2393 14.61098769230579Epoch: 2025-07-04T19:10Z
TLE epoch observation values (Epoch: 2025-07-04T19:10:29.349Z)
Latitude
-0.00003°
Longitude
127.13303°
Altitude
654.429 km
Speed
7.551 km/s
True Right ascension
22h 31m 12s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
20.85701°
Longitude
134.65508°
Altitude
651.5 km
Speed
7.555 km/s
Apparent Right ascension
20h 24m 43s
Apparent Declination
-11° 36' 30"
Sunlit
Visualization observer readout
Local Sidereal Time
04:33:16
Azimuth
282.244° WNW
Elevation
-31.921°
Doppler factor
1
Loading maneuver chart data...
Loading SW <> Apogee altitude chart data...
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 R/B 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-07-05 20:21:02.006Z | 341.006° N | 2025-07-05 20:25:02.006Z | 62.631° ENE | 38.466° | 2025-07-05 20:29:02.006Z | 129.792° SE |
| 5 mins | 2025-07-05 22:04:02.006Z | 278.166° WNW | 2025-07-05 22:06:02.006Z | 248.424° W | 17.832° | 2025-07-05 22:09:02.006Z | 209.504° SW |
| 5 mins | 2025-07-06 10:45:02.006Z | 145.337° SSE | 2025-07-06 10:47:02.006Z | 107.476° ESE | 22.68° | 2025-07-06 10:50:02.006Z | 61.788° ENE |
| 7 mins | 2025-07-06 12:25:02.006Z | 249.754° W | 2025-07-06 12:28:02.006Z | 308.186° NW | 30.521° | 2025-07-06 12:32:02.006Z | 14.115° NNE |
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 |
|---|