PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-19:43:10
G10     278.0          45.2               20.8 +/-    1.16      27.9 +/-    1.16  0.110 / 0.130
G13     38.2           10.1               16.0 +/-    2.59      44.5 +/-    2.59  0.070 / 0.120
G15     51.5           41.3               16.4 +/-    0.60      23.3 +/-    0.60  0.050 / 0.040
G20     319.4          64.0               17.5 +/-    0.91      19.3 +/-    0.91  0.060 / 0.050
G21     28.5           76.0               18.1 +/-    0.42      18.6 +/-    0.42  0.230 / 0.650
G24     114.5          19.2               22.3 +/-    1.39      50.0 +/-    1.39  0.210 / 0.800
G27     314.1          25.3               18.2 +/-    1.76      35.2 +/-    1.76  0.130 / 0.310
G29     168.1          22.8               22.9 +/-    2.12      47.1 +/-    2.12  0.110 / 0.220
G32     205.3          17.7               29.0 +/-    2.13      67.5 +/-    2.13  0.040 / 0.060