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
June 4, 1981
Launch Site
PLMSC
Launch Pad
LC132/2
Launch Vehicle
Kosmos 11K65M
NORAD ID
42184
International Designator
1981-053SY
Epoch
Sat, 04 Jul 2026 13:19:15 GMT
Apogee
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Perigee
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Inclination
83.02°
Right Ascension
295.45°
Eccentricity
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Argument of Perigee
54.39°
Period
105.70 min
Mean Motion
13.62 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Name
COSMOS 1275 DEB
Alternative Name
deb Kosmos-1275
Type
Status
Owner
GUKOS
Country
Russia
Constellation
N/A
Related Satellites
Major Events
N/A
1 42184U 81053SY 26185.55503986 .00000220 00000+0 25643-3 0 9995
2 42184 83.0233 295.4536 0096541 54.3891 322.4644 13.62377399613925
Source: Celestrak
Length
0
Diameter
0
Span
0
Dry Mass
0
Launch Mass
0
Shape
N/A
Radar Cross Section
0.0037
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Unknown
Purpose
Unknown
Mission
Unknown
Manufacturer
Unknown
Life Expectancy
Unknown
Bus
Unknown
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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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.
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