PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/03-21:12:40
G02     84.8           13.7                8.3 +/-    1.76      21.4 +/-    1.76  0.090 / 0.230
G05     44.8           30.5                7.3 +/-    0.64      12.7 +/-    0.64  0.100 / 0.260
G13     94.5           33.3               11.4 +/-    0.55      18.8 +/-    0.55  0.050 / 0.090
G15     142.7          40.5               12.1 +/-    0.94      17.5 +/-    0.94  0.050 / 0.100
G20     236.1          24.7               13.1 +/-    2.11      25.8 +/-    2.11  0.050 / 0.110
G21     299.0          36.4                9.5 +/-    0.95      14.7 +/-    0.95  0.080 / 0.110
G25     208.3          24.6               10.2 +/-    1.54      20.1 +/-    1.54  0.030 / 0.030
G26     303.3          18.6                9.1 +/-    1.69      20.7 +/-    1.69  0.020 / 0.030
G29     61.0           86.5                9.3 +/-    0.91       9.3 +/-    0.91  0.060 / 0.140