PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-07:27:50
G01     69.6           32.7                3.4 +/-    1.37       5.6 +/-    1.37  0.030 / 0.040
G07     137.9          29.3                5.9 +/-    0.78      10.5 +/-    0.78  0.030 / 0.040
G11     53.2           29.6                4.8 +/-    1.04       8.5 +/-    1.04  0.050 / 0.080
G13     275.0          36.9                5.0 +/-    2.24       7.6 +/-    2.24  0.080 / 0.090
G15     301.5          15.8                1.3 +/-    1.83       3.2 +/-    1.83  0.030 / 0.030
G17     236.6          71.5                5.8 +/-    0.50       6.1 +/-    0.50  0.020 / 0.020
G19     225.2          44.5                6.3 +/-    2.54       8.5 +/-    2.54  0.110 / 0.240
G28     22.6           58.7                2.5 +/-    2.79       2.8 +/-    2.79  0.120 / 0.310
G30     136.0          60.0                5.6 +/-    0.31       6.4 +/-    0.31  0.040 / 0.080