PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-15:12:30
G10     292.7          51.2                7.0 +/-    2.38       8.7 +/-    2.38  0.050 / 0.090
G15     46.3           28.7                6.1 +/-    1.71      10.9 +/-    1.71  0.080 / 0.100
G20     350.1          65.4                7.7 +/-    0.71       8.4 +/-    0.71  0.040 / 0.040
G21     81.4           75.5                8.3 +/-    0.45       8.6 +/-    0.45  0.050 / 0.040
G24     104.3          24.8               10.6 +/-    1.77      20.8 +/-    1.77  0.080 / 0.150
G27     305.3          32.4                5.7 +/-    2.87       9.5 +/-    2.87  0.080 / 0.120
G29     168.2          12.7                7.4 +/-    0.91      19.5 +/-    0.91  0.190 / 0.210
G32     207.9          29.1                9.7 +/-    2.06      17.3 +/-    2.06  0.170 / 0.300