17. June 2015 Dark current measurements
The dark current was measured for all Vaisala ceilometer using a termination hood (s. picture).
Times for dark current measurements:
CL51_ MOL: approx. 12:20 – 12:52 UT
CL31_MOL: approx. 12:54 – 13:10 UT
CL51_CZ: approx. 13:12 – 13:44 UT
CL31_UBO: approx. 13:45 – 14:08 UT