UT    Exp   Time  flavor     comment       (S/N)^2 totals
========================================== b1   r1   b2   r2

 00:40 10724 0.0    bias        {{}}

 ----- sequence 10725, plate 634 -------
 03:19 10725 10.0   flat        pre-flat
 03:21 10726 2.0    arc         pre-arc
 03:21 10726 2.0    arc         pre-arc
 03:21 10726 2.0    arc         pre-arc
 03:21 10726 2.0    arc         pre-arc