TN-14: Validation efforts and impacts of AOD1B RL07

Abstract

We present the status of the low degree gravity coefficients C20 and C30 derived from satellite laser ranging and distributed as Technical Note 14. This includes comparisons to solutions from other centers, our group’s new long-term C20 solution that is independent of the background gravity model, and new length-of-day analysis. We also present and discuss the impacts of updating the AOD1B model from RL06 to RL07 on the C20 and C30 estimates.