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 +/-    1.27      14.7 +/-    1.27  0.040 / 0.040
G14     210.9          11.9                6.4 +/-   30.12      17.1 +/-   30.12  0.040 / 0.040
G15     45.8           26.0                9.9 +/-    2.58      19.0 +/-    2.58  0.130 / 0.610
G20     1.7            64.9               12.9 +/-    0.59      14.0 +/-    0.59  0.130 / 0.500
G21     102.7          73.1               14.6 +/-    0.87      15.1 +/-    0.87  0.140 / 0.120
G24     96.3           27.7               13.5 +/-    1.69      24.8 +/-    1.69  0.160 / 0.220
G27     298.0          35.4               13.0 +/-    1.33      20.5 +/-    1.33  0.100 / 0.130
G32     211.1          35.0               16.4 +/-    1.24      26.0 +/-    1.24  0.110 / 0.080