4/4-15

Position: 85° 18.0' N, 37° 00' W, temperature - 28° C, wind 5 knots from the NE. All instruments turned off to save power. Started on the new hydro hole - ice thickness is 1.7 meter. Drilled 9 holes down to 1.5 m depth and removed ice blocks down to 1 meter depth. Ice thickness at the current meter site is 1.5 meter. Drilled 14 holes (Ø=10 cm) down to 1.3 meter - need about 10 more holes. Checked radiation flux instruments and cleaned cupolas with pure alcohol to remove thin ice layer. IL76 flight delayed