PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-08:12:50
G01     320.6          14.0              -20.2 +/-    6.15     -51.5 +/-    6.15  0.120 / 0.400
G08     262.9          16.1                6.8 +/-    1.92      16.5 +/-    1.92  0.110 / 0.250
G10     71.5           55.0                5.5 +/-    0.60       6.5 +/-    0.60  0.110 / 0.180
G11     307.4          20.5                3.0 +/-    1.55       6.5 +/-    1.55  0.040 / 0.030
G14     280.3          69.5                4.5 +/-    0.36       4.8 +/-    0.36  0.030 / 0.030
G18     308.7          37.6                4.4 +/-    1.17       6.6 +/-    1.17  0.050 / 0.060
G20     100.5          33.0                5.5 +/-    1.09       9.1 +/-    1.09  0.050 / 0.050
G27     229.2          13.1                4.5 +/-    2.96      11.7 +/-    2.96  0.030 / 0.030
G31     177.1          35.7                5.8 +/-    2.17       9.1 +/-    2.17  0.030 / 0.020
G32     341.2          72.7                6.0 +/-    0.61       6.3 +/-    0.61  0.120 / 0.280