PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-01:28:10
G01     317.6          20.8                7.4 +/-    2.84      16.0 +/-    2.84  0.040 / 0.030
G08     252.9          11.3               12.4 +/-    5.21      33.5 +/-    5.21  0.030 / 0.030
G10     84.1           52.2                6.4 +/-    0.78       7.8 +/-    0.78  0.120 / 0.250
G11     298.7          25.8                6.5 +/-    1.89      12.4 +/-    1.89  0.250 / 0.320
G14     312.9          71.6                5.6 +/-    0.47       5.9 +/-    0.47  0.020 / 0.020
G18     104.5          26.9                6.2 +/-    2.65      11.6 +/-    2.65  0.030 / 0.020
G22     302.0          12.4                5.2 +/-    4.91      13.8 +/-    4.91  0.300 / 0.270
G25     95.5           9.9               -10.0 +/-   31.41     -27.9 +/-   31.41  0.260 / 0.370
G31     177.5          43.8                8.8 +/-    0.89      12.0 +/-    0.89  0.060 / 0.040
G32     7.0            66.8                4.8 +/-    0.28       5.2 +/-    0.28  0.040 / 0.050