Summary: calculation of original and modified IAU phase function parameters (i.e., H,G; H,G1,G2; H,G12) (and maybe also Hapke model parameters?) for inactive comet nuclei
Procedure: identify all known comets for which a minimum number of observations exist where extendedness parameters indicate [mostly] stellar appearances and/or a minimum heliocentric distance criterion is satisfied; retrieve calibrated photometry for a given filter; compute equivalent reduced magnitudes for each apparent magnitude measurement (i.e., for R=Δ=1 AU); compute best-fit phase function parameters for phase function formats of interest
Observation metadata requirements:
L1 and L2 product requirements:
Observation geometry requirements:
L3 outputs: