PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-07:12:50
G01     64.2           31.7                4.6 +/-    0.46       7.8 +/-    0.46  0.040 / 0.040
G07     140.3          24.1                6.8 +/-    1.51      13.6 +/-    1.51  0.040 / 0.040
G11     49.2           25.3                4.6 +/-    0.79       9.0 +/-    0.79  0.070 / 0.130
G13     266.7          36.8                8.2 +/-    1.34      12.5 +/-    1.34  0.070 / 0.160
G15     299.6          15.0                0.8 +/-    2.10       2.0 +/-    2.10  0.050 / 0.080
G17     250.4          76.5                7.3 +/-    0.62       7.5 +/-    0.62  0.060 / 0.080
G18     43.0           13.2                1.4 +/-    1.12       3.6 +/-    1.12  0.070 / 0.090
G19     228.3          44.3                9.5 +/-    1.00      12.9 +/-    1.00  0.080 / 0.110
G28     26.4           58.6                4.1 +/-    0.42       4.8 +/-    0.42  0.090 / 0.200
G30     141.3          57.9                8.2 +/-    1.06       9.5 +/-    1.06  0.090 / 0.200