PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-15:13:10
G01     83.7           32.9               13.3 +/-    0.78      21.9 +/-    0.78  0.030 / 0.040
G07     130.2          40.8               13.3 +/-    0.70      19.1 +/-    0.70  0.030 / 0.040
G11     62.3           36.9               11.2 +/-    1.16      17.2 +/-    1.16  0.100 / 0.100
G13     287.9          37.4               12.0 +/-    1.23      18.3 +/-    1.23  0.110 / 0.100
G15     313.3          10.7               -2.1 +/-   25.98      -5.9 +/-   25.98  0.040 / 0.070
G17     219.1          58.8               13.1 +/-    0.54      15.1 +/-    0.54  0.040 / 0.060
G18     58.2           22.4               10.1 +/-    1.54      21.1 +/-    1.54  0.050 / 0.080
G19     217.5          29.4               14.8 +/-    1.88      26.2 +/-    1.88  0.040 / 0.070
G28     359.6          61.3               12.3 +/-    0.53      13.9 +/-    0.53  0.070 / 0.110
G30     118.5          72.6               13.7 +/-    0.83      14.2 +/-    0.83  0.070 / 0.100