TY - GEN
T1 - Time periods of anomalous density for GRACE and CHAMP
AU - McLaughlin, Craig A.
AU - Fattig, Eric
AU - Krishna, Dhaval Mysore
AU - Locke, Travis
AU - Mehta, Piyush M.
PY - 2012
Y1 - 2012
N2 - While developing precision orbit ephemeris (POE) derived densities for GRACE and CHAMP, several periods have been found when the correlation between the POE derived density and accelerometer derived density is very low. The primary time period where this occurs is from October 2005 to January 2006 for GRACE. This time period includes the maneuvers required for the GRACE satellites to switch positions, but extend well before and after this event. The low correlations also exist between HASDM and accelerometer derived densities for this time period. This paper characterizes these time periods and attempts to explain the anomalous behavior.
AB - While developing precision orbit ephemeris (POE) derived densities for GRACE and CHAMP, several periods have been found when the correlation between the POE derived density and accelerometer derived density is very low. The primary time period where this occurs is from October 2005 to January 2006 for GRACE. This time period includes the maneuvers required for the GRACE satellites to switch positions, but extend well before and after this event. The low correlations also exist between HASDM and accelerometer derived densities for this time period. This paper characterizes these time periods and attempts to explain the anomalous behavior.
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M3 - Conference contribution
AN - SCOPUS:84877958799
SN - 9780877035770
T3 - Advances in the Astronautical Sciences
SP - 3299
EP - 3310
BT - ASTRODYNAMICS 2011 - Advances in the Astronautical Sciences
T2 - 2011 AAS/AIAA Astrodynamics Specialist Conference, ASTRODYNAMICS 2011
Y2 - 31 July 2011 through 4 August 2011
ER -