PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-13:57:40
G01     45.7           21.5                8.5 +/-    3.51      18.0 +/-    3.51  0.080 / 0.190
G06     177.1          30.6               12.5 +/-    1.75      21.7 +/-    1.75  0.100 / 0.170
G13     247.0          27.0                8.8 +/-    2.43      16.4 +/-    2.43  0.240 / 0.300
G15     280.0          14.5                6.4 +/-    0.84      16.2 +/-    0.84  0.240 / 0.240
G17     351.0          74.8                9.2 +/-    0.65       9.5 +/-    0.65  0.050 / 0.060
G19     260.6          66.5                9.4 +/-    0.84      10.2 +/-    0.84  0.060 / 0.070
G24     319.0          11.4               -7.3 +/-   30.62     -19.9 +/-   30.62  0.030 / 0.020
G28     61.6           50.2                8.2 +/-    0.78      10.3 +/-    0.78  0.020 / 0.020
G30     152.3          37.0               10.2 +/-    0.61      15.6 +/-    0.61  0.080 / 0.150