on the call: Karl, Shaul, Brendan, Julian, Kris

  * Pointing: star camera backed by rate gyros planned.
     * actions: Julian: get a little more detail from Reijo, 
     * [[https://wiki.cosmos.esa.int/planckpla2015/index.php/Detector_pointing#Focal_plane_drift|Planck Explanatory Supplement Link]]
     * Eric Hivon [[https://zzz.physics.umn.edu/ipsig/pointing_error_1|Pointing error T to B leakage]]
       * Question: where does the eqn. at the bottom of Slide 21 come from? (maybe in QuickPol paper)
       * Assuming that equation is true, Slide 22 shows a result summary. for 1 arcsecond 
     * Action to Eric: at 1" pointing noise, what is ratio of blue to gravitational signal at r=1e-4 ?
     * Action to Brendan: look up Gaia info
  *  Far sidelobes: 
     * Karl interacting with Maura Sandri to try to determine reliability of GRASP sims.
     * orbit around L2 introduces a trade between fuel consumption to keep a tighter orbit, and Earth/Moon sidelobe pickup
     * need some input in a month.