PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-20:43:10
G02     19.7           65.3               10.3 +/-    0.53      11.3 +/-    0.53  0.050 / 0.050
G05     152.7          52.1               16.6 +/-    0.84      20.4 +/-    0.84  0.050 / 0.040
G06     48.8           22.8                9.8 +/-    0.79      20.1 +/-    0.79  0.040 / 0.030
G12     212.2          77.2               12.0 +/-    0.78      12.3 +/-    0.78  0.030 / 0.030
G19     90.0           18.7               12.2 +/-    0.66      27.7 +/-    0.66  0.060 / 0.080
G24     214.4          9.8                 4.5 +/-   42.93      12.6 +/-   42.93  0.060 / 0.080
G25     309.1          45.6               10.0 +/-    2.30      13.3 +/-    2.30  0.260 / 0.550
G29     299.0          19.2               10.8 +/-    1.54      24.2 +/-    1.54  0.260 / 0.510