PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/30-08:13:00
G01     42.8           18.4                3.9 +/-    2.90       8.9 +/-    2.90  0.040 / 0.060
G06     179.0          32.6                6.4 +/-    0.75      10.6 +/-    0.75  0.040 / 0.060
G13     241.7          24.0                7.8 +/-    1.36      15.6 +/-    1.36  0.180 / 0.320
G15     273.2          13.5                5.5 +/-    1.21      14.3 +/-    1.21  0.160 / 0.330
G17     359.0          71.9                5.8 +/-    0.40       6.1 +/-    0.40  0.160 / 0.230
G19     272.3          68.9                6.1 +/-    0.70       6.5 +/-    0.70  0.150 / 0.270
G24     317.9          15.6                1.9 +/-    2.67       4.8 +/-    2.67  0.030 / 0.020
G28     68.6           47.7                6.3 +/-    1.59       8.2 +/-    1.59  0.030 / 0.020
G30     153.3          29.5                7.8 +/-    1.32      13.8 +/-    1.32  0.080 / 0.090