PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-21:27:50
G01     320.4          13.2                9.5 +/-    2.95      24.8 +/-    2.95  0.150 / 0.470
G08     261.8          15.9               14.9 +/-    1.67      36.2 +/-    1.67  0.180 / 0.430
G10     69.6           56.8               11.5 +/-    1.07      13.4 +/-    1.07  0.130 / 0.310
G11     307.7          20.5               10.4 +/-    2.17      22.6 +/-    2.17  0.130 / 0.300
G14     281.9          69.4               12.3 +/-    0.39      13.1 +/-    0.39  0.050 / 0.090
G18     97.2           31.9               11.8 +/-    1.28      19.8 +/-    1.28  0.080 / 0.100
G27     226.8          12.0               15.9 +/-    2.44      42.6 +/-    2.44  0.040 / 0.050
G31     179.9          33.0               14.2 +/-    1.40      23.4 +/-    1.40  0.040 / 0.040
G32     348.1          71.9               11.8 +/-    0.32      12.4 +/-    0.32  0.020 / 0.020