PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-20:57:50
G10     290.4          50.3               12.2 +/-    0.62      15.4 +/-    0.62  0.080 / 0.120
G15     47.5           33.7                8.8 +/-    0.56      14.4 +/-    0.56  0.070 / 0.110
G20     340.8          65.3                9.9 +/-    0.70      10.8 +/-    0.70  0.040 / 0.050
G21     70.0           77.0               12.3 +/-    0.48      12.6 +/-    0.48  0.040 / 0.040
G24     105.4          24.1               10.7 +/-    0.71      21.3 +/-    0.71  0.040 / 0.070
G27     306.9          31.3               11.4 +/-    1.47      19.5 +/-    1.47  0.040 / 0.080
G29     168.1          13.5               12.7 +/-    2.42      32.8 +/-    2.42  0.060 / 0.140
G32     207.8          26.5                9.8 +/-    2.02      18.5 +/-    2.02  0.100 / 0.130