lower rated period determination of hours with an amplitude of magnitude was made by French amateur astronomers René Roy and Laurent Bernasconi in September 2004 (). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), the Infrared Astronomical Satellite IRAS, and the Japanese Akari satellite, Jovita measures (), () and () kilometers in diameter and its surface has a low albedo of (), () and (), respectively. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.0670 and a diameter of 58.95 km based on an absolute magnitude of 9.7. Alternative mean-diameters published by the WISE team include (), (), () and () with albedos between 0.048 and 0.069. An asteroid occultation, observed on 5 February 2007, gave a best-fit ellipse dimension of 58.0 × 58.0 kilometers. These timed observations are taken when the asteroid passes in front of a distant star. However the quality of the measurement is rated poorly. Notes 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 000921 Discoveries by Karl Wilhelm Reinmuth Named minor planets 19190904