Table 2 Abundance of major species released upon heating of Rocknest as measured with the SAM QMS.

Errors reported for molar abundances are the 2σ SD from the mean of calculations done with different m/z values for the same species. Weight % values were calculated with an estimated sample mass of 50 ± 8 mg (2σ), with errors propagated including the uncertainty in molar abundance (14).

Molar abundances (μmol)
Run 1Run 2Run 3Run 4
CO28.3 ± 2.010.8 ± 2.610.1 ± 2.410.4 ± 2.5
SO22.9 ± 0.213.7 ± 1.921.7 ± 2.910.5 ± 1.4
H2O43.3 ± 10.766.5 ± 16.254.5 ± 9.955.9 ± 11.9
O23.0 ± 0.45.1 ± 0.63.7 ± 0.43.7 ± 0.5
Sample weight %
Run 1Run 2Run 3Run 4
CO20.7 ± 0.21.0 ± 0.30.9 ± 0.30.9 ± 0.3
SO3 equiv.0.5 ± 0.12.2 ± 0.53.5 ± 0.71.7 ± 0.3
H2O1.6 ± 0.52.4 ± 0.72.0 ± 0.52.0 ± 0.5
ClO4 equiv.0.3 ± 0.10.5 ± 0.10.4 ± 0.10.4 ± 0.1