PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-18:28:10
G01     125.6          12.9               20.7 +/-    3.50      54.2 +/-    3.50  0.110 / 0.480
G07     57.1           69.5               19.8 +/-    0.66      21.0 +/-    0.66  0.120 / 0.410
G08     50.6           40.8               17.6 +/-    1.04      25.3 +/-    1.04  0.080 / 0.080
G09     178.3          34.4               21.6 +/-    1.94      34.7 +/-    1.94  0.100 / 0.110
G11     117.8          36.1               21.3 +/-    0.54      33.2 +/-    0.54  0.050 / 0.060
G13     320.7          12.9               15.5 +/-    1.51      40.5 +/-    1.51  0.050 / 0.060
G17     201.4          13.5               22.1 +/-    0.91      57.0 +/-    0.91  0.050 / 0.080
G18     102.5          17.5               19.7 +/-    1.31      46.2 +/-    1.31  0.060 / 0.060
G28     279.7          54.1               22.7 +/-    1.01      27.3 +/-    1.01  0.030 / 0.040
G30     337.2          63.0               19.2 +/-    0.95      21.3 +/-    0.95  0.030 / 0.040