PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-08:43:10
G01     315.6          25.5                2.1 +/-    2.16       4.0 +/-    2.16  0.090 / 0.160
G10     92.1           47.0                4.3 +/-    0.38       5.6 +/-    0.38  0.120 / 0.170
G11     294.4          26.3                3.4 +/-    1.69       6.5 +/-    1.69  0.080 / 0.130
G14     325.0          71.2                5.4 +/-    1.20       5.7 +/-    1.20  0.080 / 0.120
G18     294.0          47.1                4.9 +/-    1.59       6.4 +/-    1.59  0.040 / 0.060
G20     112.2          23.0                3.2 +/-    1.72       6.6 +/-    1.72  0.050 / 0.050
G22     305.8          19.2                4.4 +/-    2.45       9.8 +/-    2.45  0.050 / 0.040
G25     93.9           11.7               -8.0 +/-   28.94     -21.5 +/-   28.94  0.050 / 0.050
G31     173.4          51.1                5.8 +/-    1.49       7.2 +/-    1.49  0.080 / 0.180
G32     14.0           64.2                2.0 +/-    0.76       2.2 +/-    0.76  0.070 / 0.170