PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-21:12:30
G02     30.2           57.8               10.9 +/-    0.82      12.7 +/-    0.82  0.040 / 0.040
G05     141.3          60.9               13.4 +/-    0.94      15.1 +/-    0.94  0.040 / 0.040
G06     53.4           15.6                7.6 +/-    3.65      18.6 +/-    3.65  0.020 / 0.050
G12     194.2          67.6                8.0 +/-    1.85       8.6 +/-    1.85  0.040 / 0.030
G19     97.8           13.0               11.3 +/-    1.00      29.5 +/-    1.00  0.050 / 0.060
G25     299.0          52.6               10.9 +/-    1.40      13.3 +/-    1.40  0.040 / 0.060
G29     305.6          25.6               10.5 +/-    4.07      20.2 +/-    4.07  0.040 / 0.050