PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-13:27:40
G01     80.6           32.9                6.8 +/-    0.97      11.2 +/-    0.97  0.070 / 0.100
G07     131.9          35.8                6.5 +/-    0.71      10.2 +/-    0.71  0.060 / 0.100
G11     59.3           33.6                5.9 +/-    0.97       9.6 +/-    0.97  0.060 / 0.110
G13     287.6          36.5                6.1 +/-    1.51       9.5 +/-    1.51  0.060 / 0.120
G15     311.5          11.9                3.5 +/-    2.20       9.3 +/-    2.20  0.030 / 0.040
G17     221.7          64.0                9.5 +/-    1.32      10.4 +/-    1.32  0.040 / 0.040
G19     218.6          36.1                8.3 +/-    1.07      12.9 +/-    1.07  0.060 / 0.110
G28     4.6            60.7                7.3 +/-    0.90       8.3 +/-    0.90  0.070 / 0.110
G30     121.1          71.7                5.6 +/-    0.64       5.9 +/-    0.64  0.040 / 0.050