PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-04:28:00
G10     254.1          30.7               15.7 +/-    1.12      27.1 +/-    1.12  0.090 / 0.110
G13     49.8           26.7                8.7 +/-    1.49      16.4 +/-    1.49  0.090 / 0.110
G15     76.7           55.5               10.8 +/-    0.86      12.8 +/-    0.86  0.040 / 0.040
G16     294.9          14.4               12.2 +/-    2.11      30.8 +/-    2.11  0.030 / 0.050
G20     275.7          53.4               12.0 +/-    1.32      14.5 +/-    1.32  0.090 / 0.170
G21     341.2          63.5                8.9 +/-    0.60       9.8 +/-    0.60  0.100 / 0.220
G26     266.6          13.8               15.0 +/-    2.73      38.5 +/-    2.73  0.030 / 0.040
G29     163.1          42.4               14.2 +/-    1.69      19.9 +/-    1.69  0.040 / 0.050