PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-14:57:50
G02     217.8          55.7               11.4 +/-    0.75      13.5 +/-    0.75  0.040 / 0.060
G06     54.7           72.5               11.0 +/-    0.36      11.5 +/-    0.36  0.040 / 0.070
G12     319.9          40.4                8.6 +/-    0.94      12.4 +/-    0.94  0.070 / 0.090
G17     58.7           30.7                9.4 +/-    2.09      16.2 +/-    2.09  0.060 / 0.070
G19     34.7           52.2               10.7 +/-    1.93      13.2 +/-    1.93  0.030 / 0.020
G24     261.2          41.8               11.5 +/-    2.57      16.3 +/-    2.57  0.040 / 0.020
G28     122.9          13.8               11.2 +/-    2.70      28.7 +/-    2.70  0.040 / 0.040