<a href="https://en.wikipedia.org/wiki/Mars_Radiation_Environment_Experiment" class="extiw" title="en:Mars Radiation Environment Experiment">Mars Radiation Environment Experiment</a> Daily Average Dose Rate from March 13, 2002 to September 30, 2003. <a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="en:NASA">NASA</a> data.
<a rel="nofollow" class="external free" href="http://marie.jsc.nasa.gov/Data/">http://marie.jsc.nasa.gov/Data/</a>