PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-18:27:50
G01     91.8           31.5               13.3 +/-    0.82      22.7 +/-    0.82  0.120 / 0.300
G07     124.2          47.1               14.2 +/-    0.66      18.6 +/-    0.66  0.240 / 0.280
G08     42.4           10.4               10.7 +/-    3.22      29.4 +/-    3.22  0.040 / 0.050
G11     71.1           40.8               12.7 +/-    0.66      18.2 +/-    0.66  0.040 / 0.050
G13     296.2          35.5               13.4 +/-    2.58      21.0 +/-    2.58  0.040 / 0.030
G17     214.1          49.3               15.7 +/-    0.69      20.0 +/-    0.69  0.030 / 0.030
G18     65.5           24.3               12.2 +/-    1.89      24.2 +/-    1.89  0.140 / 0.130
G19     214.2          24.3               16.6 +/-    1.36      33.0 +/-    1.36  0.100 / 0.190
G28     346.8          61.8               12.1 +/-    0.55      13.6 +/-    0.55  0.080 / 0.100
G30     100.3          76.4               13.7 +/-    0.49      14.0 +/-    0.49  0.080 / 0.080