PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-10:57:40
G02     204.0          39.1                7.6 +/-    1.04      11.3 +/-    1.04  0.070 / 0.130
G06     163.0          70.8                7.1 +/-    0.32       7.5 +/-    0.32  0.080 / 0.120
G12     309.4          17.0                5.5 +/-    1.99      12.9 +/-    1.99  0.060 / 0.070
G17     41.1           45.0                3.3 +/-    1.02       4.4 +/-    1.02  0.090 / 0.080
G19     12.4           62.1                4.0 +/-    0.55       4.4 +/-    0.55  0.140 / 0.180
G24     295.5          38.7                5.2 +/-    2.18       7.8 +/-    2.18  0.090 / 0.200
G28     106.5          28.1                5.0 +/-    1.09       9.2 +/-    1.09  0.040 / 0.040