Name of the Speaker(s): L.O. Takalo, A., Sillanp\"a\"a, T. Pursimo, S. Katajainen, K. Nilsson, P. Hein\"am\"aki, H. Pietil\"a, M. Hanski
Institution: Tuorla Observatory, FIN-21500 Piikkio, Finland
Title of the communication: Monitoring of Blazars at Tuorla Observatory.
Preliminary abstract (12 lines max.): We present preliminary result from monitoring a sample of blazars at Tuorla Observatory. We have a Peltier cooled CCD, with V-filter on the one meter telescope. Since last fall we have observed during 85 nights. A total of 3000 observations on 20 objects have been collected. A lot of these observations have been made in connection with international multifrequency campaigns that have included satellite observations by EGRET, ROSAT, IUE and XTE. We will describe our telescope and detector systems and show some preliminary results.