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                4.0 +/-    1.93       6.7 +/-    1.93  0.050 / 0.060
G07     126.0          45.3                5.2 +/-    1.59       6.9 +/-    1.59  0.050 / 0.050
G11     70.9           41.1                5.2 +/-    0.82       7.4 +/-    0.82  0.030 / 0.050
G13     294.8          35.6                6.2 +/-    0.93       9.7 +/-    0.93  0.040 / 0.040
G15     314.5          10.8               -3.2 +/-   19.23      -8.9 +/-   19.23  0.090 / 0.110
G17     215.3          52.6                7.5 +/-    1.03       9.2 +/-    1.03  0.090 / 0.120
G19     214.9          27.9                7.7 +/-    1.29      14.2 +/-    1.29  0.040 / 0.080
G28     351.7          61.6                4.3 +/-    0.64       4.8 +/-    0.64  0.050 / 0.070
G30     111.9          70.9                6.1 +/-    0.58       6.4 +/-    0.58  0.060 / 0.110