PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-22:42:50
G02     207.4          47.6               14.9 +/-    0.92      19.4 +/-    0.92  0.080 / 0.120
G06     118.9          78.8               13.1 +/-    0.48      13.3 +/-    0.48  0.060 / 0.150
G12     313.6          25.0               11.9 +/-    2.38      23.2 +/-    2.38  0.070 / 0.070
G17     43.8           43.8               10.8 +/-    0.71      14.9 +/-    0.71  0.060 / 0.080
G19     20.1           58.7               12.8 +/-    0.45      14.7 +/-    0.45  0.080 / 0.250
G24     283.3          42.1               12.6 +/-    0.72      17.7 +/-    0.72  0.090 / 0.280
G28     113.1          22.9               12.8 +/-    0.68      26.2 +/-    0.68  0.070 / 0.080