PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-23:12:30
G02     213.3          57.9               14.0 +/-    0.69      16.2 +/-    0.69  0.090 / 0.110
G06     66.4           76.4               12.2 +/-    0.24      12.5 +/-    0.24  0.070 / 0.110
G12     317.6          33.5                8.5 +/-    1.31      13.8 +/-    1.31  0.070 / 0.070
G17     52.6           37.3               10.3 +/-    0.95      15.6 +/-    0.95  0.060 / 0.070
G19     34.1           52.2               11.5 +/-    1.64      14.1 +/-    1.64  0.140 / 0.290
G24     269.5          42.2               12.8 +/-    2.00      18.0 +/-    2.00  0.150 / 0.360
G28     120.7          15.7               13.0 +/-    1.81      31.8 +/-    1.81  0.040 / 0.030