Astrophysical parameters of the P1 targets within the LOPN1 (left panels) and LOPS1 (right panels) provisional fields. Top panels: Number density of P1 targets as a function of effective temperature and stellar radius. The high-density ridge corresponds to the main sequence, where the Solar parameters (1 R_⊙, 5778 K) are marked with a cyan diamond point as reference. Middle panels: Number density of P1 targets as a function of Galactic latitude |b| and stellar radius. A histogram of b is overplotted with a magenta line and arbitrary normalization. Bottom panels: Number density of P1 targets as a function of distance and stellar radius. The median distance at fixed solar radius is plotted with a green line.