PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-16:12:50
G01     64.6           31.9                9.7 +/-    0.33      16.3 +/-    0.33  0.040 / 0.040
G07     140.4          26.2               12.5 +/-    0.92      23.7 +/-    0.92  0.040 / 0.050
G11     50.2           26.6                8.8 +/-    1.68      16.6 +/-    1.68  0.080 / 0.090
G13     267.4          36.6               11.1 +/-    1.52      17.1 +/-    1.52  0.070 / 0.110
G15     299.7          15.1                7.2 +/-    2.63      17.9 +/-    2.63  0.030 / 0.050
G17     245.1          73.0               13.0 +/-    0.58      13.5 +/-    0.58  0.030 / 0.060
G18     44.9           15.2                7.8 +/-    2.19      19.3 +/-    2.19  0.050 / 0.100
G19     228.3          44.2               12.7 +/-    1.45      17.4 +/-    1.45  0.040 / 0.110
G28     28.8           57.9               10.2 +/-    0.59      11.8 +/-    0.59  0.070 / 0.180
G30     140.7          57.1               11.5 +/-    0.76      13.5 +/-    0.76  0.070 / 0.180