Science operation plan of Phobos and Deimos from the MMX spacecraft

Earth, Planets and Space

Table 4 MEGANE required measurements from low-altitude QSO observations

Measurement	Global measurement of Phobos		Measurements of the “red” and “blue” units separately
Measurement	Detection limit	Relative precision (± 1σ) (%)	Detection limit	Relative precision (± 1σ) (%)
H	100 ppm	20	100 ppm	33
O	20 wt%	33
Mg	2 wt%	33
Si	2 wt%	20	2 wt%	33
K	300 ppm	20	300 ppm	33
Ca	5 wt%	33
Fe	1.5 wt%	20	1.5 wt%	33
Th	150 ppb	20
A (average atomic mass)	n/a	33	n/a	33
Σa (thermal neutron absorption)	n/a	33	n/a	33