PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/09-18:27:50
G01     56.6           29.2                8.6 +/-    1.04      15.3 +/-    1.04  0.040 / 0.060
G07     143.8          19.4               11.7 +/-    2.07      26.2 +/-    2.07  0.050 / 0.050
G11     46.9           21.3                8.1 +/-    0.86      17.3 +/-    0.86  0.080 / 0.260
G13     258.5          33.9               11.2 +/-    2.31      18.1 +/-    2.31  0.090 / 0.310
G15     291.7          15.9                9.4 +/-    3.26      22.9 +/-    3.26  0.100 / 0.420
G17     268.2          76.5               12.2 +/-    0.60      12.5 +/-    0.60  0.110 / 0.410
G18     40.4           10.8                8.7 +/-    1.46      23.9 +/-    1.46  0.030 / 0.040
G19     236.0          51.7               13.0 +/-    1.71      16.1 +/-    1.71  0.030 / 0.030
G28     41.5           55.5               10.3 +/-    0.53      12.2 +/-    0.53  0.080 / 0.230
G30     145.9          48.6               12.9 +/-    0.61      16.5 +/-    0.61  0.080 / 0.250