PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/22-09:43:00
G01     320.2          15.4                3.2 +/-    4.80       7.9 +/-    4.80  0.100 / 0.300
G08     260.6          15.3                4.1 +/-    5.09      10.2 +/-    5.09  0.130 / 0.290
G10     74.4           54.1                5.5 +/-    0.66       6.6 +/-    0.66  0.040 / 0.030
G11     305.8          21.7                4.3 +/-    1.24       9.0 +/-    1.24  0.030 / 0.020
G14     286.1          70.3                3.6 +/-    0.92       3.8 +/-    0.92  0.160 / 0.330
G18     307.0          39.4                4.2 +/-    1.42       6.1 +/-    1.42  0.140 / 0.310
G20     102.2          31.6                5.6 +/-    1.02       9.5 +/-    1.02  0.050 / 0.060
G27     228.1          11.9                3.6 +/-    1.01       9.7 +/-    1.01  0.040 / 0.040
G31     177.3          37.1                5.4 +/-    0.80       8.3 +/-    0.80  0.100 / 0.230
G32     343.6          72.1                4.9 +/-    0.67       5.2 +/-    0.67  0.090 / 0.240