PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-13:13:00
G03     209.8          55.9               10.8 +/-    1.05      12.7 +/-    1.05  0.070 / 0.200
G07     258.2          15.9                6.4 +/-    2.44      15.6 +/-    2.44  0.150 / 0.260
G09     311.3          29.6                7.8 +/-    1.62      13.7 +/-    1.62  0.080 / 0.080
G16     87.0           63.6               10.2 +/-    0.69      11.2 +/-    0.69  0.100 / 0.070
G22     184.8          37.3                9.3 +/-    1.06      14.2 +/-    1.06  0.030 / 0.030
G23     337.3          64.7                8.8 +/-    0.72       9.6 +/-    0.72  0.040 / 0.030
G26     51.1           40.1                8.9 +/-    0.89      12.9 +/-    0.89  0.030 / 0.040
G27     132.7          11.9               10.0 +/-    1.41      26.7 +/-    1.41  0.040 / 0.040