PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-21:27:30
G02     17.4           66.8                7.7 +/-    0.41       8.3 +/-    0.41  0.030 / 0.050
G05     154.3          50.0               11.5 +/-    1.36      14.5 +/-    1.36  0.040 / 0.050
G06     47.7           24.8                8.1 +/-    1.64      15.9 +/-    1.64  0.050 / 0.090
G12     224.8          79.2                8.2 +/-    0.98       8.3 +/-    0.98  0.060 / 0.090
G19     88.2           19.8                9.8 +/-    1.05      21.7 +/-    1.05  0.020 / 0.030
G24     216.1          11.4               11.4 +/-    2.29      30.8 +/-    2.29  0.030 / 0.030
G25     310.9          43.4                8.0 +/-    2.25      11.0 +/-    2.25  0.120 / 0.310
G29     297.4          17.7                9.1 +/-    1.51      21.3 +/-    1.51  0.150 / 0.330