PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-20:27:20
G10     292.7          50.3               18.9 +/-    3.12      23.7 +/-    3.12  0.050 / 0.030
G15     47.6           35.3               16.5 +/-    0.90      26.1 +/-    0.90  0.040 / 0.030
G20     344.1          65.4               18.7 +/-    0.80      20.3 +/-    0.80  0.080 / 0.120
G21     85.3           75.4               20.1 +/-    0.37      20.7 +/-    0.37  0.100 / 0.120
G24     98.0           24.9               21.6 +/-    1.61      42.2 +/-    1.61  0.050 / 0.070
G29     168.3          10.9               26.7 +/-    2.34      73.1 +/-    2.34  0.060 / 0.080
G32     209.0          29.4               27.0 +/-    1.75      47.9 +/-    1.75  0.110 / 0.120