PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-22:28:00
G02     58.2           33.7                8.7 +/-    0.71      14.2 +/-    0.71  0.260 / 0.460
G05     59.2           61.5                9.6 +/-    0.94      10.7 +/-    0.94  0.160 / 0.520
G12     185.8          35.7               12.3 +/-    2.04      19.3 +/-    2.04  0.040 / 0.070
G13     127.8          14.1               12.5 +/-    2.44      31.6 +/-    2.44  0.060 / 0.070
G15     163.8          11.9               14.7 +/-    1.88      39.3 +/-    1.88  0.050 / 0.120
G21     270.5          16.1               13.8 +/-    3.49      33.5 +/-    3.49  0.050 / 0.100
G25     239.4          53.0               11.5 +/-    1.32      14.0 +/-    1.32  0.050 / 0.110
G29     329.1          54.7               10.3 +/-    1.66      12.4 +/-    1.66  0.040 / 0.100