PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-19:43:00
G10     247.3          25.7               16.5 +/-    1.65      31.7 +/-    1.65  0.040 / 0.060
G13     56.5           30.7               13.0 +/-    1.54      22.4 +/-    1.54  0.040 / 0.050
G15     95.5           58.2               14.6 +/-    0.81      16.8 +/-    0.81  0.070 / 0.150
G16     299.1          15.8               11.5 +/-    3.32      28.1 +/-    3.32  0.060 / 0.130
G20     265.9          49.1               13.6 +/-    4.61      17.3 +/-    4.61  0.030 / 0.040
G21     328.9          56.7               13.8 +/-    0.76      16.2 +/-    0.76  0.030 / 0.050
G26     271.7          16.9               14.7 +/-    0.77      34.8 +/-    0.77  0.150 / 0.230
G29     162.3          55.0               15.0 +/-    0.44      17.9 +/-    0.44  0.220 / 0.210