PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-02:43:10
G02     61.0           31.1                8.3 +/-    0.77      14.3 +/-    0.77  0.070 / 0.110
G05     55.7           58.7               10.1 +/-    0.49      11.6 +/-    0.49  0.050 / 0.100
G12     184.4          31.2               14.6 +/-    1.51      24.9 +/-    1.51  0.030 / 0.040
G13     127.5          15.9               13.4 +/-    2.49      32.6 +/-    2.49  0.040 / 0.040
G15     163.1          13.1               15.6 +/-    1.98      40.7 +/-    1.98  0.050 / 0.070
G20     218.5          18.8               19.5 +/-    1.70      44.2 +/-    1.70  0.040 / 0.060
G21     272.0          17.7               12.7 +/-    3.19      29.6 +/-    3.19  0.070 / 0.120
G25     236.4          51.2               12.7 +/-    0.75      15.8 +/-    0.75  0.060 / 0.110
G29     328.5          54.9               10.8 +/-    0.60      12.9 +/-    0.60  0.130 / 0.440