PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-22:42:50
G01     68.2           32.6               11.7 +/-    0.80      19.5 +/-    0.80  0.040 / 0.080
G07     138.7          29.4               13.9 +/-    1.32      24.7 +/-    1.32  0.060 / 0.080
G11     53.5           30.9               10.0 +/-    1.29      17.2 +/-    1.29  0.060 / 0.140
G13     272.2          37.0               13.4 +/-    1.31      20.5 +/-    1.31  0.050 / 0.170
G15     300.2          15.9               10.4 +/-    1.78      25.3 +/-    1.78  0.030 / 0.040
G17     235.7          66.9               13.5 +/-    1.07      14.5 +/-    1.07  0.030 / 0.030
G18     47.8           17.5                9.3 +/-    0.67      21.8 +/-    0.67  0.030 / 0.050
G19     226.0          43.6               15.0 +/-    0.89      20.7 +/-    0.89  0.030 / 0.050
G28     24.4           58.6               10.7 +/-    0.23      12.3 +/-    0.23  0.100 / 0.230
G30     137.5          57.1               12.7 +/-    0.58      14.8 +/-    0.58  0.100 / 0.240