4-6    *      skip # head

13-29  3    abs=7e-15 # x
13-29  4    abs=8e-17 # px
13-29  7    abs=5e-13 # t
13-29  8    abs=7e-14 # pt

10-29  3    abs=3e-7
10-29  4    abs=2e-9
10-29  7    abs=3e-6
10-29  8    abs=2e-6