PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-00:12:30
G02     212.7          57.7               15.0 +/-    0.89      17.4 +/-    0.89  0.050 / 0.130
G06     69.7           77.2               11.9 +/-    0.68      12.1 +/-    0.68  0.050 / 0.080
G12     317.3          32.5               10.8 +/-    1.16      17.9 +/-    1.16  0.060 / 0.090
G17     51.4           38.4                9.6 +/-    0.39      14.4 +/-    0.39  0.060 / 0.080
G19     33.7           52.3               10.8 +/-    0.52      13.2 +/-    0.52  0.040 / 0.050
G24     270.7          42.2               11.8 +/-    1.42      16.6 +/-    1.42  0.030 / 0.060
G28     120.2          16.1               13.1 +/-    1.78      31.6 +/-    1.78  0.130 / 0.250