PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-17:58:00
G01     103.1          27.6               11.1 +/-    1.28      20.4 +/-    1.28  0.210 / 0.200
G07     112.5          55.6               12.7 +/-    0.46      15.0 +/-    0.46  0.100 / 0.220
G08     41.9           18.7                9.2 +/-    1.03      20.8 +/-    1.03  0.030 / 0.040
G11     84.3           43.0               12.1 +/-    0.64      16.8 +/-    0.64  0.030 / 0.040
G13     306.4          30.9               12.1 +/-    1.23      20.7 +/-    1.23  0.030 / 0.020
G17     208.3          39.3               14.7 +/-    1.23      21.6 +/-    1.23  0.030 / 0.030
G18     76.4           24.8               11.4 +/-    2.43      22.5 +/-    2.43  0.060 / 0.130
G28     326.2          61.5               10.8 +/-    0.65      12.1 +/-    0.65  0.070 / 0.140
G30     47.5           79.4               12.3 +/-    0.97      12.5 +/-    0.97  0.080 / 0.140