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RL05 Products (Updated: 2015-04-07)

Mission Operations Status (Updated: 2015-11-09)

Orbit Configuration (updated daily)

Lifetime Prediction

Present Groundtrack

Swap Maneuver (Dec 2005)

GRACE Launch

Science Data Products

GRACE Newsletter

Mission Overview

GRACE Orbit Lifetime Prediction: Created on 2011-12-02 using
MSFC Flux Data; Prediction Epoch is 2011-09-30 

GRACE Orbit Lifetime Parameters obtained using Predicted (95%) Monthly Solar Flux

Click here for GRC-1 Lifetime Data using MET

GRACE Satellite Drag Parameters:

  • CD = 2.448   (GPS estimated CD, Averaged over the first 9 months of 2011)  

  • A = 0.96 m2

  • Mass = 485.40 kg (Kept same, over the mission so far)

Go to the UTopia web site
Go to University of Texas web site


The GRACE mission is jointly implemented by NASA and DLR under
the NASA Earth System Science Pathfinder Program.

Last Modified: Fri Dec 02, 2011