PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-07:42:50
G07     51.3           69.3                8.0 +/-    0.92       8.4 +/-    0.92  0.040 / 0.030
G08     50.3           38.6                6.6 +/-    1.25       9.9 +/-    1.25  0.040 / 0.030
G09     174.1          32.4                8.0 +/-    3.24      13.4 +/-    3.24  0.020 / 0.040
G11     118.1          34.8               10.3 +/-    0.84      16.5 +/-    0.84  0.030 / 0.030
G17     198.9          15.3                6.9 +/-    2.72      17.0 +/-    2.72  0.110 / 0.230
G18     103.3          16.0                6.8 +/-    2.03      16.4 +/-    2.03  0.140 / 0.260
G23     161.2          10.2                3.5 +/-    2.61       9.6 +/-    2.61  0.070 / 0.090
G28     272.7          51.2               10.0 +/-    2.87      12.4 +/-    2.87  0.080 / 0.090
G30     329.1          58.0                6.4 +/-    1.10       7.4 +/-    1.10  0.040 / 0.100