PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-07:57:50
G01     71.0           32.9                5.2 +/-    0.83       8.6 +/-    0.83  0.030 / 0.050
G07     137.2          30.3                8.0 +/-    1.21      13.9 +/-    1.21  0.030 / 0.060
G11     54.0           30.3                4.9 +/-    0.79       8.5 +/-    0.79  0.060 / 0.120
G13     276.7          37.0                6.7 +/-    0.72      10.2 +/-    0.72  0.060 / 0.110
G15     302.7          15.5                0.4 +/-    2.48       0.9 +/-    2.48  0.100 / 0.410
G17     234.1          70.6                7.3 +/-    1.04       7.7 +/-    1.04  0.100 / 0.350
G19     224.2          43.3                8.0 +/-    0.58      11.1 +/-    0.58  0.030 / 0.040
G28     20.3           59.0                5.1 +/-    0.41       5.9 +/-    0.41  0.040 / 0.040
G30     134.6          61.5                7.4 +/-    0.86       8.2 +/-    0.86  0.050 / 0.080