PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/16-23:57:40
G01     315.3          24.8                8.2 +/-    1.64      16.1 +/-    1.64  0.120 / 0.440
G10     91.4           49.0                8.4 +/-    0.61      10.7 +/-    0.61  0.140 / 0.360
G11     294.1          27.2                7.1 +/-    1.62      13.2 +/-    1.62  0.070 / 0.190
G14     328.4          70.9                8.3 +/-    0.99       8.7 +/-    0.99  0.130 / 0.140
G18     108.8          22.7                8.8 +/-    1.94      18.1 +/-    1.94  0.030 / 0.060
G22     304.4          15.8                6.2 +/-    2.85      15.2 +/-    2.85  0.050 / 0.070
G25     91.8           12.2                8.3 +/-    1.15      22.1 +/-    1.15  0.140 / 0.470
G31     177.8          48.2               11.5 +/-    1.28      14.9 +/-    1.28  0.140 / 0.440
G32     16.0           63.3                7.4 +/-    1.31       8.2 +/-    1.31  0.040 / 0.060