PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-02:28:00
G10     294.8          50.9               10.3 +/-    0.75      12.9 +/-    0.75  0.060 / 0.110
G15     46.8           31.8                8.1 +/-    0.99      13.7 +/-    0.99  0.070 / 0.090
G20     319.0          61.1               14.4 +/-    0.91      16.2 +/-    0.91  0.090 / 0.120
G21     87.7           75.9               11.2 +/-    0.47      11.5 +/-    0.47  0.110 / 0.140
G24     98.3           25.7               10.9 +/-    1.37      20.9 +/-    1.37  0.060 / 0.050
G27     302.4          33.4               10.2 +/-    1.45      16.6 +/-    1.45  0.060 / 0.050
G32     209.5          32.0               12.9 +/-    1.26      21.6 +/-    1.26  0.040 / 0.050