PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-21:42:20
G02     31.1           57.1               15.8 +/-    0.69      18.5 +/-    0.69  0.050 / 0.050
G05     139.9          61.5               19.6 +/-    0.60      21.9 +/-    0.60  0.050 / 0.050
G06     53.7           15.2               11.4 +/-    1.86      28.3 +/-    1.86  0.040 / 0.040
G12     194.3          67.1               18.2 +/-    1.39      19.6 +/-    1.39  0.040 / 0.040
G19     98.4           12.5               16.7 +/-    1.83      44.0 +/-    1.83  0.040 / 0.050
G25     298.3          52.9               15.5 +/-    0.74      18.9 +/-    0.74  0.030 / 0.050
G29     306.1          26.1               13.9 +/-    2.19      26.6 +/-    2.19  0.040 / 0.070