PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-08:12:40
G01     81.0           33.1                3.3 +/-    1.14       5.5 +/-    1.14  0.030 / 0.040
G07     131.8          37.6                7.4 +/-    0.61      11.1 +/-    0.61  0.030 / 0.040
G11     60.6           35.2                4.2 +/-    0.78       6.6 +/-    0.78  0.060 / 0.070
G13     287.2          36.7                3.0 +/-    1.27       4.6 +/-    1.27  0.050 / 0.080
G15     309.8          13.1                0.3 +/-    3.08       0.9 +/-    3.08  0.050 / 0.040
G17     221.6          63.0                5.6 +/-    1.48       6.2 +/-    1.48  0.040 / 0.040
G19     218.5          35.7                6.4 +/-    1.88      10.1 +/-    1.88  0.130 / 0.220
G28     5.3            60.7                2.7 +/-    0.73       3.0 +/-    0.73  0.070 / 0.210
G30     122.7          69.6                6.3 +/-    0.61       6.7 +/-    0.61  0.070 / 0.090