PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-08:42:50
G01     87.0           32.4                6.2 +/-    0.96      10.3 +/-    0.96  0.030 / 0.030
G07     128.0          42.0                7.4 +/-    0.79      10.4 +/-    0.79  0.020 / 0.030
G11     64.1           37.7                4.4 +/-    0.42       6.6 +/-    0.42  0.040 / 0.060
G13     291.1          37.1                5.8 +/-    1.94       8.9 +/-    1.94  0.040 / 0.060
G17     216.0          58.6                7.8 +/-    0.68       9.0 +/-    0.68  0.080 / 0.120
G18     59.3           22.3                2.9 +/-    1.52       6.1 +/-    1.52  0.090 / 0.110
G19     216.0          26.0                5.1 +/-    1.17       9.7 +/-    1.17  0.070 / 0.170
G28     351.6          61.7                3.3 +/-    0.88       3.7 +/-    0.88  0.070 / 0.200
G30     110.1          75.9                7.3 +/-    1.27       7.5 +/-    1.27  0.080 / 0.120