PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-23:58:00
G02     35.7           53.2               12.1 +/-    0.64      14.7 +/-    0.64  0.030 / 0.040
G05     131.3          64.5               13.6 +/-    0.77      14.9 +/-    0.77  0.030 / 0.040
G06     55.6           12.9                9.7 +/-    1.46      25.2 +/-    1.46  0.040 / 0.040
G12     193.8          64.0               12.7 +/-    0.73      14.0 +/-    0.73  0.030 / 0.070
G25     293.3          54.6               13.1 +/-    0.81      15.7 +/-    0.81  0.050 / 0.060
G29     308.7          29.0               11.6 +/-    1.88      20.7 +/-    1.88  0.050 / 0.060