PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-20:27:30
G10     292.7          50.3               19.7 +/-    0.96      24.7 +/-    0.96  0.090 / 0.090
G15     47.6           35.3               16.9 +/-    0.37      26.7 +/-    0.37  0.050 / 0.090
G20     344.1          65.4               18.0 +/-    1.14      19.6 +/-    1.14  0.050 / 0.050
G21     85.3           75.4               21.6 +/-    0.59      22.2 +/-    0.59  0.050 / 0.040
G24     98.0           24.9               20.6 +/-    0.80      40.4 +/-    0.80  0.070 / 0.160
G27     305.1          31.7               18.9 +/-    1.20      32.0 +/-    1.20  0.060 / 0.120
G29     168.3          10.9               27.0 +/-    3.54      73.9 +/-    3.54  0.050 / 0.070
G32     209.0          29.4               27.5 +/-    1.71      48.7 +/-    1.71  0.050 / 0.080