PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-21:12:50
G01     51.0           26.1               12.3 +/-    1.19      23.4 +/-    1.19  0.100 / 0.410
G06     177.6          24.6               17.4 +/-    1.14      34.3 +/-    1.14  0.110 / 0.360
G07     146.1          13.8               17.1 +/-    4.05      43.7 +/-    4.05  0.090 / 0.110
G11     45.3           17.0                8.9 +/-    1.03      21.2 +/-    1.03  0.070 / 0.110
G13     251.9          30.9               15.6 +/-    1.02      26.8 +/-    1.02  0.190 / 0.330
G15     284.8          15.8               13.1 +/-    2.69      32.0 +/-    2.69  0.150 / 0.280
G17     290.0          77.2               14.2 +/-    0.65      14.5 +/-    0.65  0.090 / 0.240
G19     244.6          57.9               15.8 +/-    0.71      18.3 +/-    0.71  0.100 / 0.350
G28     51.4           53.1               12.7 +/-    0.53      15.5 +/-    0.53  0.030 / 0.060
G30     148.9          41.2               15.6 +/-    0.85      22.3 +/-    0.85  0.040 / 0.060