PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-15:12:30
G02     245.9          76.8               15.8 +/-    0.93      16.1 +/-    0.93  0.110 / 0.100
G05     173.9          15.4               24.2 +/-    1.73      59.5 +/-    1.73  0.120 / 0.120
G06     40.2           58.0               15.3 +/-    0.62      17.8 +/-    0.62  0.230 / 0.350
G12     321.4          53.5               15.2 +/-    1.73      18.4 +/-    1.73  0.090 / 0.260
G17     74.2           18.9               13.1 +/-    0.76      29.6 +/-    0.76  0.030 / 0.060
G19     60.9           35.8               13.9 +/-    0.77      21.8 +/-    0.77  0.030 / 0.060
G24     245.1          34.0               17.7 +/-    0.92      28.7 +/-    0.92  0.060 / 0.130
G25     317.2          16.5               11.3 +/-    3.57      27.1 +/-    3.57  0.060 / 0.120