PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-11:12:30
G02     201.1          22.4                5.3 +/-    2.32      11.0 +/-    2.32  0.090 / 0.110
G06     167.0          57.9                6.1 +/-    0.44       7.1 +/-    0.44  0.090 / 0.130
G13     223.7          11.4                6.1 +/-    2.38      16.5 +/-    2.38  0.040 / 0.040
G17     23.1           58.7                5.9 +/-    0.97       6.7 +/-    0.97  0.040 / 0.040
G19     338.7          70.4                5.6 +/-    0.52       6.0 +/-    0.52  0.040 / 0.030
G24     308.4          30.4                5.3 +/-    1.56       9.2 +/-    1.56  0.040 / 0.030
G28     85.9           44.1                4.3 +/-    0.91       5.9 +/-    0.91  0.110 / 0.180
G30     158.1          13.5                5.3 +/-    1.18      13.7 +/-    1.18  0.110 / 0.230