PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-08:43:10
G01     88.8           32.1                6.9 +/-    0.69      11.6 +/-    0.69  0.030 / 0.030
G07     126.8          43.3                8.8 +/-    1.25      12.2 +/-    1.25  0.030 / 0.030
G11     65.6           38.4                4.7 +/-    0.34       7.0 +/-    0.34  0.050 / 0.050
G13     292.8          36.7                6.5 +/-    1.42      10.0 +/-    1.42  0.040 / 0.060
G17     214.8          57.1                8.1 +/-    1.10       9.5 +/-    1.10  0.070 / 0.110
G18     60.7           22.7                3.5 +/-    0.98       7.3 +/-    0.98  0.080 / 0.120
G19     215.3          24.6                8.7 +/-    2.04      17.2 +/-    2.04  0.060 / 0.120
G28     348.7          61.7                4.1 +/-    0.87       4.6 +/-    0.87  0.070 / 0.140
G30     105.2          77.0                7.3 +/-    0.75       7.5 +/-    0.75  0.070 / 0.170