PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-17:58:10
G02     204.9          36.8               15.4 +/-    2.02      23.6 +/-    2.02  0.080 / 0.090
G06     146.9          73.6               13.9 +/-    0.96      14.4 +/-    0.96  0.120 / 0.090
G12     310.4          20.9               10.6 +/-    2.03      22.8 +/-    2.03  0.030 / 0.030
G17     39.0           46.8               11.6 +/-    1.38      15.2 +/-    1.38  0.040 / 0.030
G19     2.0            64.5               12.3 +/-    0.39      13.4 +/-    0.39  0.270 / 0.250
G24     292.7          40.4               16.4 +/-    7.88      23.7 +/-    7.88  0.130 / 0.270
G28     105.8          28.9               12.9 +/-    1.45      23.1 +/-    1.45  0.030 / 0.030