Discovered 1997 June 9 by R. Tucker at Goodricke-Pigott Observatory.
Named in honor of Frank Hill (b. 1951), a U.S. astronomer, inventor of a method for probing beneath the solar surface, an expert on selection of observatory sites, and Data Scientist for the worldwide GONG network of helioseismic telescopes and the National Solar Observatory digital data archive.

https://en.wikipedia.org/wiki/Global_Oscillations_Network_Group

Frankhill orbits the sun every 1,270 days (3.48 years), coming as close as 1.64 AU and reaching as far as 2.94 AU from the sun. Frankhill is about 2.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to Mount Everest.
The rotation of Frankhill has been observed. It completes a rotation on its axis every 50.04 hours.

https://www.spacereference.org/asteroid/31098-frankhill-1997-lq2

Time: 23:22UT 2025-07-10 Exp. 40 x 65 sec.
Telescope 0.254m f/6 ST-10XME CCD -19°C 0.9"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.