PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-21:12:40
G10     303.4          54.4               12.2 +/-    0.99      14.7 +/-    0.99  0.060 / 0.090
G14     210.9          11.9                3.4 +/-   33.19       9.2 +/-   33.19  0.090 / 0.080
G15     45.8           26.0               10.8 +/-    1.02      20.7 +/-    1.02  0.040 / 0.040
G20     1.7            64.9               12.0 +/-    0.75      13.1 +/-    0.75  0.040 / 0.040
G21     102.7          73.1               14.0 +/-    1.15      14.5 +/-    1.15  0.130 / 0.450
G24     96.3           27.7               14.4 +/-    2.19      26.6 +/-    2.19  0.140 / 0.500
G27     298.0          35.4               13.7 +/-    0.90      21.5 +/-    0.90  0.060 / 0.100
G32     211.1          35.0               16.5 +/-    1.10      26.1 +/-    1.10  0.070 / 0.100