PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-19:27:40
G08     266.6          17.7               11.7 +/-    2.33      27.2 +/-    2.33  0.130 / 0.180
G10     61.8           58.6                7.8 +/-    0.49       9.0 +/-    0.49  0.190 / 0.180
G11     311.3          17.3                9.6 +/-    3.38      22.5 +/-    3.38  0.050 / 0.100
G14     269.5          66.9                9.3 +/-    0.65      10.0 +/-    0.65  0.050 / 0.130
G18     93.5           34.3                9.1 +/-    0.83      14.7 +/-    0.83  0.140 / 0.310
G24     39.8           10.5                9.0 +/-    1.36      24.8 +/-    1.36  0.160 / 0.310
G27     230.0          14.9               10.9 +/-    1.77      27.2 +/-    1.77  0.040 / 0.050
G31     179.6          29.6               12.1 +/-    1.37      21.3 +/-    1.37  0.030 / 0.050
G32     337.6          73.9                8.6 +/-    0.74       8.9 +/-    0.74  0.020 / 0.030