PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-15:28:10
G01     75.2           33.3               12.6 +/-    1.16      20.6 +/-    1.16  0.040 / 0.050
G07     135.2          34.4               13.1 +/-    1.53      21.0 +/-    1.53  0.030 / 0.050
G11     56.1           32.8                9.7 +/-    0.63      16.1 +/-    0.63  0.060 / 0.100
G13     279.0          37.9               12.9 +/-    1.47      19.5 +/-    1.47  0.050 / 0.110
G15     307.7          13.1                9.8 +/-    1.40      25.6 +/-    1.40  0.030 / 0.050
G17     227.4          65.5               14.7 +/-    0.99      16.0 +/-    0.99  0.030 / 0.060
G18     51.8           19.8               11.4 +/-    1.39      25.3 +/-    1.39  0.050 / 0.070
G19     221.5          35.8               14.6 +/-    0.96      22.8 +/-    0.96  0.060 / 0.080
G28     12.8           60.1               12.0 +/-    0.60      13.6 +/-    0.60  0.060 / 0.120
G30     131.0          66.2               12.4 +/-    0.51      13.4 +/-    0.51  0.060 / 0.120