PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-06:27:40
G07     38.1           69.1                3.9 +/-    0.88       4.2 +/-    0.88  0.060 / 0.080
G08     54.8           42.8                3.1 +/-    0.82       4.3 +/-    0.82  0.050 / 0.070
G09     178.5          42.1                7.7 +/-    1.45      10.9 +/-    1.45  0.020 / 0.040
G11     123.4          31.1                5.3 +/-    1.61       9.1 +/-    1.61  0.020 / 0.030
G17     198.9          11.0               -3.6 +/-   19.10      -9.8 +/-   19.10  0.160 / 0.350
G23     161.0          14.4                6.8 +/-    1.62      17.2 +/-    1.62  0.280 / 0.350
G27     38.0           10.9                2.2 +/-    1.24       6.0 +/-    1.24  0.040 / 0.050
G28     268.6          50.2                4.6 +/-    0.83       5.8 +/-    0.83  0.050 / 0.040
G30     327.1          55.8                2.5 +/-    0.67       3.0 +/-    0.67  0.070 / 0.060