  Direct-sampling observations of interstellar neutral (ISN) species and their
secondary populations give information about the physical state of the local
interstellar medium and processes occuring in the outer heliosheath. Such
observations are performed from Earth's orbit by the IBEX-Lo experiment on
board the Interstellar Boundary Explorer (IBEX) mission. IBEX ISN viewing is
restricted to directions close to perpendicular to the Earth-Sun line, which
limits the observations of interstellar species to several months during the
year. A greatly improved data set will be possible for the upcoming
Interstellar Mapping and Acceleration Probe (IMAP) mission due to a novel
concept of putting the IMAP ISN detector, IMAP-Lo, on a pivot platform that
varies the angle of observation relative to the Sun-Earth line and the detector
boresight. Here we suggest a 2 yr scenario for varying the viewing angle in
such a way that all the necessary atom components can be observed sufficiently
well to achieve the science goals of the nominal IMAP mission. This scenario
facilitates, among others, removal of the correlation of the inflow parameters
of interstellar gas, unambiguous analysis of the primary and secondary
populations of interstellar helium (He), neon (Ne) and oxygen (O), and
determination of the ionization rates of He and Ne free of possible calibration
bias. The scheme is operationally simple, provides a good counting statistics,
and synergizes observations of interstellar species and heliospheric energetic
neutral atoms.
