PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-15:58:10
G02     358.0          73.6                5.8 +/-    0.32       6.0 +/-    0.32  0.160 / 0.220
G05     162.4          41.7                8.8 +/-    1.11      12.5 +/-    1.11  0.200 / 0.210
G06     45.0           30.3                5.6 +/-    1.43       9.7 +/-    1.43  0.040 / 0.020
G12     262.3          81.3                6.4 +/-    0.86       6.4 +/-    0.86  0.030 / 0.020
G19     81.7           25.2                6.8 +/-    1.30      13.2 +/-    1.30  0.040 / 0.050
G24     218.8          15.0                9.0 +/-    2.79      22.4 +/-    2.79  0.050 / 0.070
G25     313.6          40.1                6.3 +/-    1.03       9.1 +/-    1.03  0.070 / 0.150
G29     293.1          14.1                7.6 +/-    1.94      19.3 +/-    1.94  0.060 / 0.090