PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-14:28:10
G02     201.3          23.1                8.7 +/-    1.91      17.8 +/-    1.91  0.070 / 0.110
G06     170.1          57.7               10.6 +/-    0.82      12.3 +/-    0.82  0.060 / 0.110
G13     226.4          10.8                8.3 +/-    4.14      22.7 +/-    4.14  0.080 / 0.260
G17     29.4           54.7                7.0 +/-    0.91       8.4 +/-    0.91  0.080 / 0.300
G19     342.4          69.8                9.2 +/-    0.61       9.7 +/-    0.61  0.030 / 0.050
G24     308.6          30.9                7.1 +/-    1.34      12.2 +/-    1.34  0.040 / 0.050
G28     92.8           37.0                8.3 +/-    0.88      12.7 +/-    0.88  0.040 / 0.040
G30     157.9          12.3                9.2 +/-    0.65      24.3 +/-    0.65  0.040 / 0.040