PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/06-08:42:40
G01     71.0           32.9                3.1 +/-    1.04       5.0 +/-    1.04  0.030 / 0.060
G07     137.2          30.1                4.8 +/-    0.87       8.5 +/-    0.87  0.030 / 0.060
G11     53.8           30.0                2.3 +/-    0.78       4.1 +/-    0.78  0.100 / 0.470
G13     276.8          36.9                6.0 +/-    0.80       9.2 +/-    0.80  0.090 / 0.360
G15     302.9          15.4                1.9 +/-    1.75       4.6 +/-    1.75  0.050 / 0.110
G17     234.3          70.8                4.5 +/-    1.26       4.8 +/-    1.26  0.070 / 0.120
G19     224.2          43.4                6.4 +/-    0.59       8.8 +/-    0.59  0.040 / 0.040
G28     20.3           59.1                2.3 +/-    0.46       2.7 +/-    0.46  0.030 / 0.040
G30     134.6          61.9                5.3 +/-    0.96       5.9 +/-    0.96  0.040 / 0.080