PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/11-00:12:20
G02     201.8          32.9               14.9 +/-    1.75      24.6 +/-    1.75  0.280 / 0.240
G06     163.8          65.8               12.7 +/-    0.33      13.8 +/-    0.33  0.100 / 0.180
G12     305.8          12.6               10.1 +/-    3.02      26.5 +/-    3.02  0.030 / 0.030
G17     28.3           55.0               11.6 +/-    1.37      13.8 +/-    1.37  0.040 / 0.030
G19     352.6          67.1               11.7 +/-    0.42      12.5 +/-    0.42  0.060 / 0.130
G24     301.4          36.3               12.8 +/-    2.28      19.7 +/-    2.28  0.060 / 0.110
G28     99.8           32.8               12.3 +/-    1.01      20.4 +/-    1.01  0.050 / 0.120