PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-23:12:50
G01     76.5           33.3               15.5 +/-    1.45      25.3 +/-    1.45  0.070 / 0.090
G07     134.5          35.8               16.6 +/-    1.38      25.9 +/-    1.38  0.090 / 0.090
G11     59.2           35.8               14.0 +/-    1.46      21.9 +/-    1.46  0.040 / 0.060
G13     281.3          37.5               15.8 +/-    1.71      23.9 +/-    1.71  0.030 / 0.050
G15     306.2          14.5               11.3 +/-    3.21      28.3 +/-    3.21  0.050 / 0.040
G17     225.7          61.2               17.8 +/-    1.62      20.0 +/-    1.62  0.040 / 0.030
G18     337.7          -17.1              24.8 +/-    6.52      58.5 +/-    6.52  0.140 / 0.090
G19     220.9          37.4               18.3 +/-    1.52      27.8 +/-    1.52  0.120 / 0.120
G28     12.0           60.1               15.2 +/-    1.17      17.2 +/-    1.17  0.060 / 0.090
G30     129.9          63.3               17.3 +/-    0.47      19.1 +/-    0.47  0.050 / 0.080