PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/05-17:27:40
G02     56.2           35.6               12.7 +/-    0.57      20.0 +/-    0.57  0.030 / 0.070
G05     70.7           67.8               13.1 +/-    0.49      14.1 +/-    0.49  0.050 / 0.060
G12     186.7          37.7               14.2 +/-    1.35      21.5 +/-    1.35  0.080 / 0.090
G13     133.1          12.1               15.3 +/-    2.70      40.6 +/-    2.70  0.120 / 0.080
G20     205.6          55.2               16.2 +/-    1.23      19.3 +/-    1.23  0.180 / 0.370
G21     268.3          16.3               15.6 +/-    2.60      37.6 +/-    2.60  0.180 / 0.570
G25     239.4          54.3               15.3 +/-    1.03      18.3 +/-    1.03  0.030 / 0.040
G29     329.3          55.1               11.9 +/-    1.54      14.2 +/-    1.54  0.030 / 0.040