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GRACE-1 (27391)
COSPAR: 2002-012A | Alt Name: GRACE 1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
March 17, 2002
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Rokot
Orbital Elements
NORAD ID
27391
International Designator
2002-012A
Decay Date
3/10/2018
Basic Satellite Info
Name
GRACE-1
Alternative Name
GRACE 1
Type
Payload
Status
Decayed
Owner
GFZ/JPL
Country
Germany
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
GRACE-1 (2002-012A) is an Earth science satellite launched on March 17, 2002, from Plesetsk Launch Site using a Rokot launch vehicle from LC133/3 pad. The spacecraft measures 3.1 meters in length and 0.8 meters in diameter with a span of 3.1 meters, has a dry mass of 443 kg, and was launched with a mass of 475 kg. It is equipped with a GPS receiver and microwave ranging system for gravity field mapping missions. The satellite's power comes from solar cells and batteries, and its shape is hexagonal cylindrical with an RCS value of 0.6178. GRACE-1 was manufactured by ASTD for GFZ/JPL and operated well beyond its planned five-year lifetime, reaching over ten years in orbit.
Physical Characteristics
Length
3.1
Diameter
0.8
Span
3.1
Dry Mass
443
Launch Mass
475
Shape
Hex Cyl
Radar Cross Section
0.6178
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
GRACE 1
Purpose
Earth Science, Gravity field mapping
Mission
Earth Science, Gravity field mapping
Manufacturer
ASTD
Life Expectancy
5 years (planned), +10 years reached
Bus
FlexBus
Configuration
Flexbus
Motor
N2 AOCS
Equipment
GPS receiver, microwave ranging system
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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