Synodic periods of asteroids 333, 402, 481, and 800

The asteroids 333 Badenia, 402 Chloe, 481 Emita and 800 Kressmannia have been observed using photoelectric photometry during their 1997 apparations. The obtained synodic periods are: 333 Badenia — 9.96 h; 402 Chloe — 7.111 h; 481 Emita — 14.35 h and 800 Kressmannia — 4.457 h. There are no published periods so far for the first three. We obtained the phase parameters of 402 Chloe, they are H=8.86 and G=0.11.