PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-22:27:50
G01     88.1           32.3                9.1 +/-    1.27      15.2 +/-    1.27  0.090 / 0.360
G07     127.1          44.4               12.0 +/-    1.35      16.3 +/-    1.35  0.110 / 0.440
G08     42.9           9.9                 8.2 +/-    2.20      22.8 +/-    2.20  0.040 / 0.030
G11     69.0           40.5                8.9 +/-    1.45      12.9 +/-    1.45  0.040 / 0.030
G13     293.0          36.2                9.7 +/-    4.30      15.1 +/-    4.30  0.090 / 0.170
G17     216.6          51.6               11.1 +/-    1.39      13.7 +/-    1.39  0.060 / 0.150
G18     62.6           23.7                8.0 +/-    1.87      16.2 +/-    1.87  0.070 / 0.060
G19     215.5          28.4               11.1 +/-    2.06      20.1 +/-    2.06  0.040 / 0.040
G28     353.8          61.6                8.6 +/-    0.84       9.7 +/-    0.84  0.060 / 0.060
G30     112.9          72.0               11.4 +/-    1.16      11.9 +/-    1.16  0.040 / 0.050