PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-19:43:10
G01     294.2          39.7                8.0 +/-    1.25      11.7 +/-    1.25  0.060 / 0.100
G03     310.9          14.7                7.3 +/-    1.71      18.2 +/-    1.71  0.060 / 0.090
G10     117.5          30.0                9.8 +/-    0.41      17.2 +/-    0.41  0.050 / 0.110
G11     266.3          26.6                8.6 +/-    1.29      16.2 +/-    1.29  0.060 / 0.090
G14     21.2           60.0                6.1 +/-    0.40       6.9 +/-    0.40  0.110 / 0.230
G18     251.7          48.9                8.1 +/-    1.32      10.4 +/-    1.32  0.090 / 0.190
G22     313.4          35.7                7.1 +/-    2.00      11.0 +/-    2.00  0.040 / 0.070
G25     63.6           16.4                5.7 +/-    1.22      13.6 +/-    1.22  0.050 / 0.050
G31     157.9          75.3                9.1 +/-    0.59       9.3 +/-    0.59  0.080 / 0.120
G32     47.7           44.6                5.7 +/-    0.67       7.8 +/-    0.67  0.060 / 0.110