PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-21:28:10
G02     200.6          24.5               17.7 +/-    4.55      35.1 +/-    4.55  0.300 / 0.330
G06     168.1          58.2               14.3 +/-    0.55      16.5 +/-    0.55  0.290 / 0.590
G13     225.0          10.9               16.4 +/-    2.71      44.8 +/-    2.71  0.140 / 0.150
G17     21.1           59.7               12.7 +/-    0.60      14.5 +/-    0.60  0.150 / 0.150
G19     328.6          70.2               12.1 +/-    0.56      12.8 +/-    0.56  0.060 / 0.090
G24     307.6          32.1               11.3 +/-    1.24      18.9 +/-    1.24  0.080 / 0.080
G28     91.8           37.6               13.3 +/-    0.73      20.2 +/-    0.73  0.040 / 0.040
G30     157.2          10.9               19.3 +/-    7.86      52.7 +/-    7.86  0.050 / 0.030