1. Urumqi Observatory, NAOC, 40-5 South Beijing Road, Urumqi, 830011, China 2. Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China 3. Max-Plank-Institut für Radioastronomie, Auf dem Hügel 69, 53121, Bonn, Germany
Abstract:
A selected sample of intra-day variable AGN had been observed for 3–4 days per month at the Urumqi Observatory. The sample includes 7 target sources and 7 calibrators. The BL Lac object B0716+ 714 shows prominent intraday and long term variations.