Simultaneous Multiwavelength Blazar Observations

TeV blazars such as Markarian 421 and Markarian 501 are excellent laboratories for studying the physical processes within the jets of active galactic nuclei. However, the potential for rapid variability in these objects, as previously observed, makes it necessary for strictly simultaneous multiwavelength data to be utilized for studying their broadband behavior. To date, most studies have utilized contemporaneous data for broadband studies, however, due to the lack of truly simultaneous observations, the results from these studies may not be reliable. Here we describe an ongoing effort to obtain simultaneous multiwavelength data on TeV blazars and present the initial results.