The Sheppard et al . announcement was immediately correlated with an August 6 2000 observation by the team of Brett J. Gladman , John J. Kavelaars , Jean-Marc Petit , Hans Scholl , Matthew J. Holman , Brian G. Marsden , Philip D. Nicholson and Joseph A. Burns â '' an observation that was reported to the Minor Planet Center but not published as an IAU Circular ( IAUC ) . The Sheppard et al . announcement was immediately correlated with an August 6 , 2000 observation by the team of Brett J. Gladman , John J. Kavelaars , Jean-Marc Petit , Hans Scholl , Matthew J. Holman , Brian G. Marsden , Philip D. Nicholson and Joseph A. Burns â '' an observation that was reported to the Minor Planet Center but not published as an IAU Circular ( IAUC ) .