PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-15:43:00
G01     83.5           32.9                8.9 +/-    1.14      14.8 +/-    1.14  0.060 / 0.100
G07     130.3          40.7               10.0 +/-    1.09      14.4 +/-    1.09  0.050 / 0.080
G11     62.3           37.0                9.3 +/-    0.90      14.2 +/-    0.90  0.030 / 0.030
G13     287.7          37.4               12.3 +/-    0.76      18.6 +/-    0.76  0.030 / 0.020
G15     312.9          10.9                0.1 +/-   21.99       0.3 +/-   21.99  0.080 / 0.190
G17     219.4          58.6               11.0 +/-    1.04      12.6 +/-    1.04  0.110 / 0.240
G18     58.1           22.4                7.8 +/-    1.49      16.3 +/-    1.49  0.070 / 0.080
G19     217.6          29.7               11.4 +/-    1.84      20.1 +/-    1.84  0.070 / 0.090
G28     360.0          61.2                8.8 +/-    1.14       9.9 +/-    1.14  0.040 / 0.050
G30     119.1          72.3               11.4 +/-    0.31      11.9 +/-    0.31  0.030 / 0.060