PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/05-20:57:50
G02     208.0          47.4               17.0 +/-    0.70      22.2 +/-    0.70  0.090 / 0.130
G06     112.3          78.9               15.3 +/-    0.48      15.6 +/-    0.48  0.120 / 0.140
G12     314.2          26.5               13.1 +/-    1.16      24.8 +/-    1.16  0.080 / 0.080
G17     45.4           42.3               11.2 +/-    1.59      15.7 +/-    1.59  0.080 / 0.080
G19     20.0           58.7               13.4 +/-    0.79      15.4 +/-    0.79  0.030 / 0.030
G24     281.9          42.3               15.0 +/-    1.54      21.1 +/-    1.54  0.030 / 0.020
G28     113.6          22.6               14.2 +/-    0.96      29.3 +/-    0.96  0.060 / 0.030