PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-14:58:00
G01     320.3          14.9                2.5 +/-    1.94       6.3 +/-    1.94  0.080 / 0.210
G08     259.2          15.3                4.7 +/-    1.28      11.6 +/-    1.28  0.080 / 0.200
G10     73.9           54.5                5.9 +/-    0.40       7.0 +/-    0.40  0.030 / 0.040
G11     305.5          22.0                2.3 +/-    2.02       4.8 +/-    2.02  0.030 / 0.040
G14     286.5          70.3                5.9 +/-    0.50       6.2 +/-    0.50  0.190 / 0.370
G18     305.7          41.1                4.8 +/-    2.21       6.9 +/-    2.21  0.130 / 0.440
G20     102.0          31.7                7.3 +/-    0.73      12.4 +/-    0.73  0.040 / 0.050
G27     229.2          12.1                5.0 +/-    3.96      13.4 +/-    3.96  0.040 / 0.050
G31     180.1          34.1                8.9 +/-    2.56      14.3 +/-    2.56  0.110 / 0.290
G32     350.5          71.5                6.3 +/-    0.71       6.6 +/-    0.71  0.110 / 0.260