PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-18:43:00
G02     69.6           24.7               14.4 +/-    2.12      28.3 +/-    2.12  0.080 / 0.090
G05     48.3           53.7               13.1 +/-    0.97      15.8 +/-    0.97  0.100 / 0.110
G12     182.9          20.1               16.1 +/-    0.94      35.4 +/-    0.94  0.070 / 0.170
G13     119.5          23.6               16.1 +/-    1.40      32.6 +/-    1.40  0.180 / 0.210
G15     156.8          22.1               17.2 +/-    2.22      36.0 +/-    2.22  0.110 / 0.200
G18     222.0          12.0                7.2 +/-   25.38      19.3 +/-   25.38  0.090 / 0.170
G20     218.4          74.2               15.9 +/-    0.34      16.4 +/-    0.34  0.040 / 0.040
G21     282.0          26.3               15.3 +/-    1.63      29.0 +/-    1.63  0.030 / 0.030
G25     218.6          40.6               16.7 +/-    1.69      24.0 +/-    1.69  0.040 / 0.050
G29     343.7          71.3               14.3 +/-    0.60      15.0 +/-    0.60  0.040 / 0.030