**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 asteroids

**Procedure:** identify all asteroids for which a minimum number of observations exist; 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:**

- filter

**L1 and L2 product requirements:**

- photometry

**Observation geometry requirements:**

- R
- Delta
- phase angle

**L3 outputs:**

- None