PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-19:28:10
G02     219.0          61.9               17.2 +/-    0.69      19.2 +/-    0.69  0.030 / 0.080
G06     50.6           70.1               15.4 +/-    0.45      16.3 +/-    0.45  0.040 / 0.060
G12     320.3          41.5               15.6 +/-    1.05      22.2 +/-    1.05  0.050 / 0.050
G17     59.5           31.1               14.1 +/-    1.29      24.1 +/-    1.29  0.040 / 0.060
G19     39.9           49.3               14.4 +/-    0.57      18.3 +/-    0.57  0.070 / 0.090
G24     260.1          40.9               16.2 +/-    1.10      23.3 +/-    1.10  0.070 / 0.090
G28     124.5          11.5               14.3 +/-    2.72      38.7 +/-    2.72  0.080 / 0.440