PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-21:42:30
G08     302.3          21.0               10.3 +/-    1.70      22.2 +/-    1.70  0.040 / 0.060
G10     357.4          62.4               11.4 +/-    0.95      12.6 +/-    0.95  0.040 / 0.060
G14     223.9          37.8               13.9 +/-    2.12      21.0 +/-    2.12  0.140 / 0.130
G20     57.4           54.6               11.4 +/-    0.67      13.6 +/-    0.67  0.080 / 0.140
G21     143.1          47.7               13.0 +/-    0.85      16.9 +/-    0.85  0.070 / 0.040
G24     63.7           28.8               10.7 +/-    1.15      19.3 +/-    1.15  0.050 / 0.050
G27     261.9          35.0               14.8 +/-    2.32      23.4 +/-    2.32  0.070 / 0.080
G32     234.2          62.9               13.1 +/-    1.48      14.6 +/-    1.48  0.080 / 0.070