I)only find two runs which were taken or partly taken in reference cell/multi carbon cell.

31386 started at 20:06 (should be a 4hr long run), while during 16:27---21:56 5/19, target in reference cell/multi carbon
the asymmetry of the groups in the first root is as  below:


run_num  HWP out    longitudinal    2nd group    3rd group     4th group   5th group    6th group    7th group      T1
31386       0             0         1056 850      221 487      810 435     -146 234     -145 234      -144 234      -227 326

The other run is 31429, which started at 5/27/09 10:01am and ended before 11:34am, while during 09:36am---11:18am, the target was in reference cell. 
Should get a very small asymmetry for each group or parameter, but the results look not as expected.

run_num  HWP out   transverse+     2nd group    3rd group     4th group   5th group    6th group    7th group      T1
31429       0             1         4633 3114     233 1789     21 1512     -314 1828     1549 1801     1152 1609    1069 793

II)Did not include the asymmetry of the clock, since they are too small, for most of the case the absolute value is less than one.