PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-07:27:40
G01     94.4           30.7                6.5 +/-    1.09      11.2 +/-    1.09  0.030 / 0.030
G07     122.3          47.2                6.8 +/-    2.01       8.9 +/-    2.01  0.030 / 0.030
G11     71.1           40.3                4.8 +/-    0.58       7.0 +/-    0.58  0.050 / 0.060
G13     298.3          35.1                6.3 +/-    2.40      10.0 +/-    2.40  0.050 / 0.050
G17     211.0          52.4                5.8 +/-    1.12       7.1 +/-    1.12  0.090 / 0.130
G18     65.3           23.4                4.0 +/-    1.19       8.0 +/-    1.19  0.080 / 0.130
G19     213.2          20.7                4.3 +/-    3.61       9.2 +/-    3.61  0.060 / 0.200
G28     338.5          61.8                2.4 +/-    0.70       2.7 +/-    0.70  0.060 / 0.170
G30     82.5           79.8                5.9 +/-    1.07       5.9 +/-    1.07  0.080 / 0.120