Table 1 The radial differences in meters, Δr, between the gridded topography (GT) models, Chang’E-1 (GT), SELENE (GT), ULCN2005 (GT), and the LLRR and ALSEP reference sites, and their normalized differences, T (dimensionless statistical test values), computed by dividing Δr with to their claimed radial uncertainties of 31 m, 50 m, and 300 m, respectively. A bias correction of + 150 m was added to Chang’E-1 (GT). The Lunakhod 1 site annotated with an asterisk (*) is a newly recovered reference site based on lunar laser ranging (Williams and Boggs, 2010). The values in the brackets are RMS radial difference when this newly recovered site is added in the analysis.
Reference sites | Chang’E-1 (GT) | SELENE (GT) | ULCN2005 (GT) | |||
|---|---|---|---|---|---|---|
Δr (m) | T | Δr (m) | T | Δr (m) | T | |
Lunakhod 1 (LLRR)* | 3 | 0.11 | 9 | 0.19 | 6 | 0.02 |
Lunakhod 2 (LLRR) | 452 | 14.60 | 98 | 1.96 | 750 | 2.50 |
Apollo 11 (LLRR) | 17 | 0.56 | 14 | 0.29 | 217 | 0.72 |
Apollo 12 (ALSEP) | −45 | −1.45 | −35 | −0.71 | 74 | 0.25 |
Apollo 14 (LLRR) | 24 | 0.77 | 43 | 0.86 | −145 | −0.49 |
Apollo 14 (ALSEP) | 16 | 0.51 | 36 | 0.72 | −153 | −0.51 |
Apollo 15 (LLRR) | 3 | 0.10 | −83 | −1.66 | 886 | 2.95 |
Apollo 15 (ALSEP) | 2 | 0.05 | −83 | −1.66 | 879 | 2.93 |
Apollo 16 (ALSEP) | −40 | −1.30 | −22 | −0.45 | 347 | 1.16 |
Apollo 17 (ALSEP) | 120 | 3.87 | -40 | −0.80 | 511 | 1.70 |
RMS radial differences (m) | 157 (150) | 58 (55) | 537 (510) | |||