PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-17:58:10
G05     47.5           22.4                8.3 +/-    0.61      17.2 +/-    0.61  0.120 / 0.320
G10     234.8          11.0               -4.4 +/-   40.69     -11.9 +/-   40.69  0.180 / 0.320
G13     78.3           36.2               11.8 +/-    0.53      18.3 +/-    0.53  0.050 / 0.090
G15     134.1          50.0               12.5 +/-    1.04      15.7 +/-    1.04  0.060 / 0.080
G16     315.8          11.8                7.3 +/-    3.79      19.5 +/-    3.79  0.150 / 0.690
G20     246.1          35.2               11.9 +/-    1.36      18.9 +/-    1.36  0.140 / 0.540
G21     311.7          46.0                9.7 +/-    0.76      12.8 +/-    0.76  0.060 / 0.140
G25     198.0          11.2               10.9 +/-    1.50      29.7 +/-    1.50  0.050 / 0.130
G26     290.1          20.3                9.3 +/-    2.23      20.4 +/-    2.23  0.070 / 0.120
G29     152.7          75.2               10.2 +/-    0.70      10.6 +/-    0.70  0.080 / 0.130