PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-01:57:50
G01     89.6           32.0                5.4 +/-    0.37       9.0 +/-    0.37  0.100 / 0.440
G07     126.0          45.2                6.6 +/-    0.59       8.9 +/-    0.59  0.140 / 0.420
G11     70.5           40.8                4.2 +/-    0.80       6.0 +/-    0.80  0.040 / 0.050
G13     294.9          35.6                4.3 +/-    1.31       6.7 +/-    1.31  0.040 / 0.060
G15     314.4          10.8               -1.8 +/-   17.00      -5.0 +/-   17.00  0.040 / 0.050
G17     215.3          53.1                5.7 +/-    0.92       6.9 +/-    0.92  0.030 / 0.050
G19     214.9          28.1                4.5 +/-    3.39       8.2 +/-    3.39  0.090 / 0.100
G28     351.7          61.6                2.4 +/-    0.98       2.7 +/-    0.98  0.080 / 0.100
G30     111.3          71.5                5.6 +/-    0.90       5.9 +/-    0.90  0.090 / 0.110