PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-20:13:00
G01     314.4          26.0                7.9 +/-    2.32      15.1 +/-    2.32  0.100 / 0.190
G10     94.0           47.6                8.7 +/-    0.67      11.3 +/-    0.67  0.090 / 0.160
G11     293.6          26.7                8.0 +/-    1.27      15.0 +/-    1.27  0.090 / 0.160
G14     330.7          70.5                7.8 +/-    0.69       8.3 +/-    0.69  0.070 / 0.190
G18     110.6          20.3               12.0 +/-    0.80      26.2 +/-    0.80  0.040 / 0.060
G22     305.3          17.4                8.3 +/-    1.51      19.6 +/-    1.51  0.040 / 0.050
G25     91.6           13.0               12.6 +/-    1.91      32.9 +/-    1.91  0.180 / 0.310
G31     175.3          52.0               12.4 +/-    1.17      15.3 +/-    1.17  0.180 / 0.300
G32     22.3           60.6                7.8 +/-    0.39       8.8 +/-    0.39  0.040 / 0.050