PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-17:43:10
G01     82.1           33.1               10.1 +/-    0.63      16.6 +/-    0.63  0.030 / 0.040
G07     131.2          39.9               10.7 +/-    0.60      15.5 +/-    0.60  0.030 / 0.040
G11     61.8           36.9                9.4 +/-    0.44      14.3 +/-    0.44  0.030 / 0.070
G13     286.5          37.5                9.4 +/-    1.47      14.3 +/-    1.47  0.040 / 0.070
G15     311.3          12.0                8.1 +/-    1.67      21.6 +/-    1.67  0.130 / 0.260
G17     220.7          58.1               11.0 +/-    0.51      12.7 +/-    0.51  0.110 / 0.300
G18     57.3           22.2                8.1 +/-    1.58      16.8 +/-    1.58  0.030 / 0.060
G19     218.2          31.3               11.0 +/-    1.66      18.8 +/-    1.66  0.040 / 0.050
G28     2.4            61.1                8.5 +/-    0.52       9.6 +/-    0.52  0.040 / 0.050
G30     122.0          70.5               10.6 +/-    0.52      11.1 +/-    0.52  0.040 / 0.050