PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-07:27:50
G01     90.1           31.8                8.0 +/-    0.48      13.5 +/-    0.48  0.040 / 0.060
G07     125.6          44.5                8.8 +/-    0.97      12.0 +/-    0.97  0.050 / 0.060
G11     68.8           39.1                5.0 +/-    0.88       7.4 +/-    0.88  0.090 / 0.400
G13     296.2          34.9                5.7 +/-    1.49       9.1 +/-    1.49  0.050 / 0.050
G15     315.4          10.2              -10.3 +/-    6.41     -28.5 +/-    6.41  0.050 / 0.040
G17     214.4          55.3                8.2 +/-    0.85       9.8 +/-    0.85  0.040 / 0.050
G19     214.5          28.5                5.8 +/-    2.41      10.4 +/-    2.41  0.050 / 0.060
G28     350.5          61.6                3.8 +/-    0.55       4.2 +/-    0.55  0.090 / 0.110
G30     103.7          75.5                7.9 +/-    1.21       8.1 +/-    1.21  0.100 / 0.110