PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-14:58:00
G02     203.9          34.3               12.5 +/-    1.38      20.1 +/-    1.38  0.110 / 0.250
G03     58.0           9.8                10.5 +/-    1.60      29.3 +/-    1.60  0.190 / 0.300
G06     159.7          69.9               13.3 +/-    0.59      14.1 +/-    0.59  0.070 / 0.090
G12     308.5          16.2                9.1 +/-    2.37      22.0 +/-    2.37  0.080 / 0.070
G17     39.7           46.1               10.9 +/-    0.94      14.5 +/-    0.94  0.160 / 0.230
G19     8.9            63.4               11.4 +/-    0.51      12.6 +/-    0.51  0.230 / 0.210
G24     298.5          37.6                9.8 +/-    1.91      14.9 +/-    1.91  0.060 / 0.040
G28     104.2          29.9               11.5 +/-    0.95      20.1 +/-    0.95  0.040 / 0.040