PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-17:12:30
G02     204.5          32.6               14.6 +/-    1.59      24.3 +/-    1.59  0.080 / 0.120
G03     58.1           9.8                 9.8 +/-    1.60      27.4 +/-    1.60  0.070 / 0.120
G06     157.1          70.5               13.9 +/-    0.73      14.7 +/-    0.73  0.070 / 0.070
G12     308.9          17.1               12.1 +/-    1.59      28.5 +/-    1.59  0.100 / 0.080
G17     39.8           46.0               10.9 +/-    1.05      14.4 +/-    1.05  0.100 / 0.190
G19     9.3            63.3               11.8 +/-    0.55      13.1 +/-    0.55  0.150 / 0.160
G24     298.5          37.6               11.8 +/-    2.50      17.9 +/-    2.50  0.170 / 0.300
G28     104.2          30.1               11.1 +/-    0.78      19.5 +/-    0.78  0.120 / 0.300