From: High-latitude thermospheric wind study using a Fabry–Perot interferometer at Tromsø in Norway: averages and variations during quiet times
Year
Dates with measurements
2009
1.23–1.25, 1.28, 1.29, 2.17, 2.18, 11.10, 11.11, 11.13, 11.14, 11.17–11.20, 11.24, 11.27, 12.6–12.8, 12.25
2010
2.18, 3.2
2011
2.23, 2.24, 11.19
2012
9.28, 11.23, 12.23
2013
–
2014
1.19, 11.13
2015