PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-02:57:30
G02     61.7           30.5                8.2 +/-    0.98      14.2 +/-    0.98  0.080 / 0.100
G05     54.8           58.0                8.7 +/-    0.73      10.0 +/-    0.73  0.040 / 0.110
G12     184.3          30.5               10.4 +/-    1.95      18.0 +/-    1.95  0.030 / 0.040
G13     127.0          16.4                9.8 +/-    2.01      23.5 +/-    2.01  0.030 / 0.050
G15     162.6          13.7                8.1 +/-    1.10      20.8 +/-    1.10  0.050 / 0.060
G20     218.7          21.1                9.7 +/-    1.25      20.7 +/-    1.25  0.050 / 0.060
G21     272.7          18.2               10.6 +/-    2.96      24.4 +/-    2.96  0.070 / 0.120
G25     235.4          50.7                9.9 +/-    0.62      12.4 +/-    0.62  0.070 / 0.130
G29     329.0          55.7                9.7 +/-    0.59      11.5 +/-    0.59  0.050 / 0.050