PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-20:43:10
G02     60.0           32.6                7.8 +/-    2.56      12.9 +/-    2.56  0.070 / 0.080
G05     55.8           59.7               10.1 +/-    1.53      11.5 +/-    1.53  0.100 / 0.100
G12     184.7          32.2               11.6 +/-    0.91      19.4 +/-    0.91  0.240 / 0.310
G13     125.5          16.0               12.9 +/-    2.02      31.3 +/-    2.02  0.160 / 0.370
G15     162.6          13.9               14.0 +/-    4.25      35.9 +/-    4.25  0.210 / 0.460
G21     272.7          17.6               12.0 +/-    1.76      28.1 +/-    1.76  0.190 / 0.400
G25     235.6          51.1               11.1 +/-    2.69      13.8 +/-    2.69  0.110 / 0.230
G29     330.4          56.6               10.9 +/-    0.75      12.8 +/-    0.75  0.120 / 0.180