PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-23:27:40
G10     293.5          50.0                6.6 +/-    0.59       8.3 +/-    0.59  0.040 / 0.070
G14     209.5          11.5               10.2 +/-   28.56      27.5 +/-   28.56  0.040 / 0.080
G15     46.6           30.8                8.3 +/-    0.56      14.3 +/-    0.56  0.070 / 0.150
G18     352.5          66.4                6.3 +/-    0.48       6.8 +/-    0.48  0.070 / 0.130
G20     70.2           18.8                8.1 +/-    1.00      18.3 +/-    1.00  0.060 / 0.110
G21     91.6           74.4               10.0 +/-    0.78      10.3 +/-    0.78  0.090 / 0.130
G24     101.2          25.7               10.9 +/-    0.84      21.1 +/-    0.84  0.250 / 0.600
G27     301.0          34.3                9.1 +/-    0.52      14.6 +/-    0.52  0.150 / 0.430
G32     210.5          27.8               12.3 +/-    1.84      22.5 +/-    1.84  0.060 / 0.090