ESA's Proba-3 Formation-Flyer Goes Silent | KeepTrack Space Brief
ESA's Proba-3 spacecraft lost contact last month, grounding the dual-satellite solar eclipse mission. Formation flying between both craft is critical for coronagraph science.
Launch Date
September 3, 1965
Launch Site
Launch Pad
LC41/15
Launch Vehicle
Kosmos 65S3
NORAD ID
01570
International Designator
1965-070A
Epoch
Sat, 04 Jul 2026 00:58:36 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
56.06°
Right Ascension
64.87°
Eccentricity
Calculating...
Argument of Perigee
345.96°
Period
114.94 min
Mean Motion
12.53 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
COSMOS 80
Alternative Name
Kosmos-80
Type
Status
Owner
OKB10
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
1 01570U 65070A 26185.04070100 -.00000088 00000-0 49449-4 0 9996
2 01570 56.0567 64.8739 0100398 345.9640 155.6841 12.52800833783463
Source: Celestrak
Apologies, there is no summary for this satellite yet. I am working to generate these for every object in the catalog, but it is going to take time.
Length
0.8
Diameter
0.8
Span
0.8
Dry Mass
50
Launch Mass
50
Shape
Poly
Radar Cross Section
0.341
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Strela-1
Purpose
Military Communication
Mission
Military Communication
Manufacturer
OKB10
Life Expectancy
Unknown
Bus
Strela-1 11F610
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Solar cells, batteries (all); additional RTG (K 83, 90)
ADCS
Unknown
Transmitter Frequency
Unknown
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