PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-19:12:30
G02     30.1           57.7                9.9 +/-    0.69      11.5 +/-    0.69  0.030 / 0.030
G05     140.7          61.7               13.4 +/-    0.48      15.0 +/-    0.48  0.030 / 0.040
G06     54.2           14.3                8.2 +/-    2.67      20.7 +/-    2.67  0.050 / 0.060
G12     190.4          65.2               11.7 +/-    0.55      12.7 +/-    0.55  0.060 / 0.050
G19     98.5           12.8               11.8 +/-    1.69      30.9 +/-    1.69  0.030 / 0.040
G25     296.8          53.9               10.5 +/-    0.91      12.7 +/-    0.91  0.030 / 0.040
G29     306.3          26.4                9.9 +/-    1.20      18.7 +/-    1.20  0.140 / 0.170