DataLabel Date Time Log Entry
GN-2009B-Q-34-12-001 2009-08-19 12:51:30 During this exposure the seeing continued to improve to better levels than before we changed mask. GMOS chevron noise, all science frames. -MC
GN-2009B-Q-34-12-008 2009-09-24 12:29:30 GMOS chevron noise, all science frames. -MC