PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-09:28:00
G01     38.3           11.0                4.5 +/-    2.97      12.3 +/-    2.97  0.050 / 0.080
G02     199.2          15.4                6.2 +/-    4.04      15.3 +/-    4.04  0.050 / 0.090
G06     176.8          43.7               11.2 +/-    1.73      15.3 +/-    1.73  0.130 / 0.170
G13     233.5          17.5                5.5 +/-    1.23      12.8 +/-    1.23  0.130 / 0.200
G17     16.5           63.8                5.5 +/-    0.57       6.1 +/-    0.57  0.030 / 0.040
G19     305.6          71.9                6.6 +/-    0.73       6.9 +/-    0.73  0.030 / 0.040
G24     314.5          23.5                2.5 +/-    3.04       5.0 +/-    3.04  0.050 / 0.060
G28     81.1           42.7                6.5 +/-    0.41       9.1 +/-    0.41  0.060 / 0.060
G30     155.9          20.3                7.7 +/-    1.85      16.7 +/-    1.85  0.150 / 0.390