PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-15:12:40
G02     207.0          43.2               10.7 +/-    0.61      14.8 +/-    0.61  0.080 / 0.100
G06     136.6          77.7               10.8 +/-    0.84      11.0 +/-    0.84  0.150 / 0.110
G12     312.8          23.0                8.8 +/-    0.68      17.9 +/-    0.68  0.050 / 0.060
G17     47.0           40.0                8.8 +/-    0.69      12.7 +/-    0.69  0.060 / 0.070
G19     23.1           57.7                9.3 +/-    1.41      10.8 +/-    1.41  0.030 / 0.070
G24     288.2          40.8               11.6 +/-    5.13      16.6 +/-    5.13  0.050 / 0.080
G28     111.9          24.0               10.1 +/-    1.91      20.2 +/-    1.91  0.040 / 0.060