PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-18:28:10
G02     212.3          50.2               13.7 +/-    1.87      17.2 +/-    1.87  0.040 / 0.100
G06     78.7           78.2               10.9 +/-    0.62      11.1 +/-    0.62  0.050 / 0.090
G12     317.2          32.1               11.8 +/-    1.04      19.8 +/-    1.04  0.060 / 0.090
G17     54.7           33.7                9.1 +/-    0.96      14.8 +/-    0.96  0.050 / 0.090
G19     35.5           51.3               10.0 +/-    0.40      12.4 +/-    0.40  0.050 / 0.080
G24     275.9          42.0               10.0 +/-    1.68      14.0 +/-    1.68  0.050 / 0.070
G28     119.0          17.6               12.8 +/-    1.79      29.8 +/-    1.79  0.020 / 0.030