PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-21:57:50
G01     315.8          24.5                6.8 +/-    1.19      13.4 +/-    1.19  0.190 / 0.360
G10     91.6           47.9                8.1 +/-    0.60      10.6 +/-    0.60  0.170 / 0.520
G11     294.1          26.8                6.7 +/-    0.94      12.7 +/-    0.94  0.090 / 0.180
G14     323.4          71.0                9.6 +/-    0.80      10.1 +/-    0.80  0.120 / 0.190
G18     293.8          47.1                8.0 +/-    1.16      10.4 +/-    1.16  0.060 / 0.050
G20     111.9          23.2                7.4 +/-    0.83      15.2 +/-    0.83  0.060 / 0.050
G22     304.6          15.4                5.7 +/-    3.44      14.0 +/-    3.44  0.120 / 0.440
G25     90.2           11.7                2.8 +/-   28.86       7.5 +/-   28.86  0.110 / 0.410
G31     175.0          50.0               11.7 +/-    1.03      14.7 +/-    1.03  0.090 / 0.210
G32     21.4           61.4                8.1 +/-    0.69       9.1 +/-    0.69  0.110 / 0.180