1. WALTER MAX-MOERBECK OWENS VALLEY RADIO OBSERVATORY CALIFORNIA INSTITUTE OF TECHNOLOGY The OVRO 40m 15 GHz Monitoring Program

2. People Walter Max-Moerbeck Joey Richards Matthew Stevenson Tony Readhead Tim Pearson Vaso Pavlidou Graduate students

3. The program ~1200 sources, mostly CGRaBS Observed every 2 days Data since June 2007 Frequency: 15 GHz, 3 GHz bandwidth ~ 5mJy thermal noise + systematic ~2% 2.5’ beam at 15GHz

4. Purpose Characterize radio variability Correlations with gamma activity Collaboration with multiwavelength campaigns (e.g. 3C454.3, PKS 1502+106)  LAT and other groups too

5. A preview of the data