Table 1. Recording period and number of nights of data actually acquired.

Year Station Start date End date # nights data/# nights operated
2016 1 24-Apr 20-Jun 58/58
  2 29-Apr 20-Jun 53/53
  3 24-Apr 20-Jun 58/58
  4 12-Apr 1-Jun 31/38
  5 12-Apr 1-Jun 51/51
  6 12-Apr 8-Jun 55/58
  7 23-Apr 19-Jun 58/58
  8 24-Apr 4-May 10/10
 
2017 2 4-May 4-Jun 32/32
  3 4-May 4-Jun 32/32
  5 4-May 4-Jun 20/32
  6 4-May 4-Jun 32/32
 
2018 2 27-Apr 4-Jun 39/39
  5 27-Apr 4-Jun 26/39