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