PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-15:27:50
G01     54.8           28.3                8.0 +/-    1.01      14.6 +/-    1.01  0.040 / 0.050
G06     177.5          21.4               -4.4 +/-   36.27      -9.4 +/-   36.27  0.040 / 0.050
G07     144.4          17.4                9.2 +/-    1.07      21.5 +/-    1.07  0.040 / 0.110
G11     45.9           18.9                7.6 +/-    0.73      17.3 +/-    0.73  0.040 / 0.080
G13     256.1          33.2                9.7 +/-    1.76      16.0 +/-    1.76  0.040 / 0.080
G15     291.5          15.3                7.1 +/-    1.59      17.5 +/-    1.59  0.030 / 0.050
G17     285.6          78.8               10.8 +/-    0.35      11.0 +/-    0.35  0.100 / 0.250
G19     237.7          52.3               11.2 +/-    0.86      13.8 +/-    0.86  0.100 / 0.200
G28     44.1           55.0               10.3 +/-    0.59      12.3 +/-    0.59  0.080 / 0.200
G30     147.3          47.9               10.7 +/-    0.72      13.8 +/-    0.72  0.070 / 0.200