PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-02:58:10
G05     47.2           20.8                8.5 +/-    1.12      18.5 +/-    1.12  0.110 / 0.430
G13     83.9           36.4               13.8 +/-    0.64      21.4 +/-    0.64  0.100 / 0.410
G15     133.3          47.9               16.1 +/-    1.05      20.9 +/-    1.05  0.050 / 0.080
G16     318.4          10.6               -4.3 +/-   17.71     -12.0 +/-   17.71  0.040 / 0.090
G20     246.0          44.2               19.8 +/-    1.36      27.0 +/-    1.36  0.060 / 0.170
G21     307.1          42.6               13.0 +/-    0.97      18.2 +/-    0.97  0.090 / 0.170
G25     203.0          15.9               16.5 +/-    3.62      40.2 +/-    3.62  0.060 / 0.110
G26     292.3          21.1               12.5 +/-    2.40      26.8 +/-    2.40  0.070 / 0.110
G29     148.9          80.2               14.5 +/-    0.76      14.7 +/-    0.76  0.040 / 0.050