each is an average of six (6) positions: DU, DD, CU, CD, 12, 6
29 April 2020==> -1.43 sec/day
11 May 2020 ==> 0.00 sec/day
05 Sept 2020 ==> -0.14 sec/day
15 Nov 2020 ==> -2.29 sec/day

your...