PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-15:57:40
G02     74.1           20.4               15.6 +/-    1.72      34.0 +/-    1.72  0.040 / 0.050
G05     45.8           46.7               16.2 +/-    0.66      21.3 +/-    0.66  0.040 / 0.040
G12     182.3          16.1               16.1 +/-    1.76      39.1 +/-    1.76  0.210 / 0.180
G13     114.7          26.6               21.4 +/-    0.90      40.2 +/-    0.90  0.090 / 0.170
G15     153.0          26.9               21.7 +/-    4.53      40.7 +/-    4.53  0.150 / 0.300
G18     224.1          17.2               14.6 +/-    2.49      34.4 +/-    2.49  0.090 / 0.280
G20     227.9          77.8               19.2 +/-    0.30      19.6 +/-    0.30  0.030 / 0.040
G21     287.1          30.8               14.9 +/-    1.51      25.6 +/-    1.51  0.030 / 0.040
G25     216.5          36.9               19.1 +/-    1.58      29.3 +/-    1.58  0.080 / 0.130
G29     356.7          77.6               17.5 +/-    0.45      17.9 +/-    0.45  0.110 / 0.110