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
October 21, 2011
Launch Site
FRGUI
Launch Pad
ELS
Launch Vehicle
Soyuz-ST-B
NORAD ID
37847
International Designator
2011-060B
Epoch
Fri, 03 Jul 2026 18:53:16 GMT
Apogee
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Perigee
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Inclination
56.99°
Right Ascension
341.31°
Eccentricity
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Argument of Perigee
12.92°
Period
844.69 min
Mean Motion
1.70 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Name
GSAT0102 (GALILEO-FM2)
Alternative Name
GalileoSat-2
Type
Status
Owner
ESA/GSAEU
Country
European Space Agency
Constellation
N/A
Related Satellites
Major Events
N/A
1 37847U 11060B 26184.78699916 -.00000075 00000-0 00000-0 0 9996
2 37847 56.9894 341.3121 0002522 12.9231 348.3249 1.70476028 91419
Source: Celestrak
Length
2.7
Diameter
1.6
Span
14.5
Dry Mass
700
Launch Mass
700
Shape
Box + 2 Pan
Radar Cross Section
20.1111
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Galileo IOV FM2
Purpose
Navigation
Mission
Navigation
Manufacturer
EADSB/THALR
Life Expectancy
Unknown
Bus
GalileoSat
Configuration
Unknown
Motor
AOCS
Equipment
Unknown
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
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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