PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-01:12:40
G01     89.6           32.0                5.7 +/-    0.88       9.6 +/-    0.88  0.040 / 0.060
G07     126.0          45.3                6.9 +/-    0.77       9.3 +/-    0.77  0.040 / 0.050
G11     70.9           41.1                4.8 +/-    1.47       6.9 +/-    1.47  0.040 / 0.050
G13     294.8          35.6                7.2 +/-    1.11      11.3 +/-    1.11  0.030 / 0.040
G15     314.5          10.8               -0.9 +/-   20.07      -2.3 +/-   20.07  0.090 / 0.150
G17     215.3          52.6                8.9 +/-    0.81      10.9 +/-    0.81  0.080 / 0.110
G19     214.9          27.9                7.9 +/-    2.05      14.5 +/-    2.05  0.040 / 0.100
G28     351.7          61.6                3.1 +/-    0.77       3.5 +/-    0.77  0.050 / 0.110
G30     111.9          70.9                5.3 +/-    1.00       5.6 +/-    1.00  0.070 / 0.120