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Table 2 The crossover statistics for Chang’E-1 and SELENE laser altimeter data. Note that RMS (before) and RMS (after) represents RMS crossover difference before and after crossover adjustment.

From: Accuracy assessment of lunar topography models

Data time span

No. of crossovers

RMS (before) (m)

RMS (after) (m)

Chang’E-1 (27 Nov–30 Dec 2007)

10,882

152.8

84.7

Chang’E-1 (27 Nov–22 Jan 2008)

22,941

335.5

206.3

SELENE (1 Jan–31 Jan 2008)

19,194

54.3

37.0

SELENE (1 Jan–14 April 2008)

230,635

124.6

68.5