PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/12-03:28:10
G02     33.3           55.5                6.5 +/-    0.86       7.7 +/-    0.86  0.020 / 0.030
G05     138.6          61.2                8.0 +/-    0.84       9.0 +/-    0.84  0.020 / 0.030
G06     52.8           17.4                4.3 +/-    2.92      10.2 +/-    2.92  0.040 / 0.030
G12     203.2          70.1                7.4 +/-    0.47       7.8 +/-    0.47  0.030 / 0.030
G19     98.5           11.4                4.6 +/-    1.66      12.5 +/-    1.66  0.070 / 0.050
G25     300.3          51.5                5.8 +/-    1.60       7.2 +/-    1.60  0.040 / 0.060
G29     306.0          26.5                6.7 +/-    1.40      12.7 +/-    1.40  0.240 / 0.150