PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-17:57:50
G10     254.4          31.4               12.5 +/-    2.00      21.3 +/-    2.00  0.030 / 0.050
G13     49.4           26.2               11.0 +/-    0.77      21.0 +/-    0.77  0.040 / 0.060
G15     76.7           55.7               11.1 +/-    0.59      13.1 +/-    0.59  0.050 / 0.060
G16     290.9          15.6                6.9 +/-    6.01      16.8 +/-    6.01  0.060 / 0.050
G20     277.9          54.9               12.5 +/-    0.44      14.9 +/-    0.44  0.080 / 0.300
G21     339.2          62.5               10.2 +/-    0.86      11.3 +/-    0.86  0.070 / 0.190
G26     264.3          13.8                9.9 +/-    1.07      25.3 +/-    1.07  0.150 / 0.550
G29     165.0          46.4               13.4 +/-    0.64      17.7 +/-    0.64  0.150 / 0.680