PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/17-03:13:00
G01     91.0           31.6                5.9 +/-    0.57       9.9 +/-    0.57  0.040 / 0.050
G07     124.8          46.1                4.8 +/-    1.63       6.4 +/-    1.63  0.050 / 0.050
G11     71.4           40.8                4.2 +/-    0.45       6.1 +/-    0.45  0.040 / 0.040
G13     296.4          35.0                4.0 +/-    1.06       6.3 +/-    1.06  0.040 / 0.040
G15     315.4          10.2               -9.4 +/-   11.21     -26.1 +/-   11.21  0.040 / 0.060
G17     214.2          52.7                8.2 +/-    1.02      10.1 +/-    1.02  0.030 / 0.060
G19     214.3          27.2                5.1 +/-    2.05       9.5 +/-    2.05  0.080 / 0.210
G28     349.3          61.7                3.1 +/-    0.53       3.5 +/-    0.53  0.100 / 0.090
G30     106.6          73.4                5.3 +/-    0.68       5.5 +/-    0.68  0.090 / 0.100