PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-02:58:10
G02     60.6           31.4                6.5 +/-    0.46      11.1 +/-    0.46  0.050 / 0.110
G05     56.4           59.2                7.2 +/-    0.39       8.2 +/-    0.39  0.040 / 0.090
G12     184.6          32.0               11.1 +/-    2.03      18.6 +/-    2.03  0.120 / 0.470
G13     128.1          15.5               10.6 +/-    1.72      26.1 +/-    1.72  0.150 / 0.330
G15     163.3          12.6               10.5 +/-    2.47      27.6 +/-    2.47  0.030 / 0.050
G20     218.0          20.4               12.7 +/-    5.03      27.7 +/-    5.03  0.030 / 0.040
G21     271.6          17.4               12.3 +/-    3.39      28.9 +/-    3.39  0.050 / 0.060
G25     237.4          51.6                9.1 +/-    0.61      11.2 +/-    0.61  0.060 / 0.070
G29     328.2          54.4                6.9 +/-    0.71       8.3 +/-    0.71  0.060 / 0.110