Survey Explorer (WISE), and the Japanese Akari satellite, Petropolitana measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively. Alternative mean-diameters published by the WISE team include () and () with corresponding albedos of () and (). The Collaborative Asteroid Lightcurve Link, adopts the results obtained by IRAS, that is an albedo of 0.2382 and a diameter of 41.22 kilometers based on an absolute magnitude of 9.10. Two asteroid occultations of Petropolitana from May 2012 and September 2015, gave a best-fit ellipse dimension of () and (), respectively. These timed observations are taken when the asteroid passes in front of a distant star. References External links Lightcurve Database Query (LCDB), at www.minorplanet.info Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 000830 Discoveries by Grigory Neujmin Named minor planets 000830 19160825