PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-01:28:10
G08     316.2          15.1                7.6 +/-    2.42      19.0 +/-    2.42  0.070 / 0.110
G10     311.9          55.7                7.7 +/-    0.74       9.2 +/-    0.74  0.070 / 0.120
G14     213.3          22.9               13.4 +/-    1.01      27.4 +/-    1.01  0.040 / 0.050
G15     45.6           21.0                6.2 +/-    1.26      13.2 +/-    1.26  0.040 / 0.040
G18     17.6           63.8                8.1 +/-    0.50       8.9 +/-    0.50  0.040 / 0.050
G20     79.0           10.6                7.2 +/-    3.27      19.9 +/-    3.27  0.030 / 0.040
G21     120.5          66.2                9.9 +/-    0.79      10.7 +/-    0.79  0.050 / 0.070
G24     87.7           29.7                8.7 +/-    1.51      15.3 +/-    1.51  0.060 / 0.080
G27     286.4          37.8                8.3 +/-    1.43      12.6 +/-    1.43  0.090 / 0.240
G32     216.2          40.6               11.8 +/-    0.99      17.1 +/-    0.99  0.100 / 0.330