PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-19:57:30
G02     59.4           33.2                6.4 +/-    2.66      10.4 +/-    2.66  0.080 / 0.100
G05     56.5           60.4                7.9 +/-    1.19       9.0 +/-    1.19  0.080 / 0.080
G12     184.5          32.4                9.4 +/-    0.95      15.7 +/-    0.95  0.270 / 0.380
G13     125.8          15.7               11.6 +/-    2.50      28.3 +/-    2.50  0.120 / 0.310
G15     163.1          13.4               13.7 +/-    2.60      35.5 +/-    2.60  0.190 / 0.440
G21     272.3          17.2               11.4 +/-    2.29      26.8 +/-    2.29  0.150 / 0.440
G25     236.3          51.4                9.8 +/-    2.91      12.2 +/-    2.91  0.140 / 0.180
G29     329.9          55.9                8.7 +/-    0.43      10.3 +/-    0.43  0.110 / 0.180