PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-18:13:10
G02     56.3           35.7               12.2 +/-    0.67      19.1 +/-    0.67  0.180 / 0.380
G05     70.7           68.1               13.7 +/-    0.40      14.6 +/-    0.40  0.180 / 0.460
G12     186.4          37.0               15.4 +/-    0.95      23.6 +/-    0.95  0.110 / 0.080
G13     132.8          12.4               18.5 +/-    1.91      48.9 +/-    1.91  0.050 / 0.090
G20     205.6          56.0               18.1 +/-    1.40      21.4 +/-    1.40  0.040 / 0.060
G21     268.5          16.2               14.7 +/-    1.28      35.6 +/-    1.28  0.030 / 0.060
G25     237.9          54.0               16.2 +/-    0.99      19.5 +/-    0.99  0.090 / 0.450
G29     329.1          54.9               11.2 +/-    1.53      13.4 +/-    1.53  0.090 / 0.600