PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-17:42:50
G01     320.0          16.5                6.4 +/-    2.11      15.3 +/-    2.11  0.110 / 0.340
G08     260.9          15.9                9.3 +/-    2.16      22.7 +/-    2.16  0.100 / 0.360
G10     73.7           53.7                8.3 +/-    0.47      10.0 +/-    0.47  0.200 / 0.320
G11     310.2          17.3                6.9 +/-    2.12      16.1 +/-    2.12  0.150 / 0.210
G14     273.1          66.1                7.9 +/-    0.63       8.6 +/-    0.63  0.040 / 0.060
G20     102.7          29.3                8.3 +/-    0.90      14.8 +/-    0.90  0.050 / 0.060
G27     227.1          12.3                9.9 +/-    5.98      26.2 +/-    5.98  0.140 / 0.270
G31     177.4          36.0               12.7 +/-    1.21      19.8 +/-    1.21  0.130 / 0.320
G32     1.9            70.1                8.4 +/-    0.56       8.9 +/-    0.56  0.030 / 0.040