PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-14:57:50
G02     204.5          36.2               12.6 +/-    1.53      19.6 +/-    1.53  0.120 / 0.240
G03     56.3           9.7                10.6 +/-    1.43      29.8 +/-    1.43  0.130 / 0.270
G06     156.7          71.8               11.0 +/-    0.39      11.5 +/-    0.39  0.130 / 0.170
G12     309.5          17.6               10.0 +/-    1.76      23.4 +/-    1.76  0.300 / 0.140
G17     41.3           44.8                8.8 +/-    1.32      11.9 +/-    1.32  0.080 / 0.080
G19     12.2           62.2                9.5 +/-    0.76      10.6 +/-    0.76  0.050 / 0.070
G24     296.4          38.4                8.6 +/-    1.36      12.8 +/-    1.36  0.030 / 0.040
G28     105.9          28.7                9.4 +/-    2.19      16.9 +/-    2.19  0.030 / 0.050