PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-21:12:30
G10     300.5          53.5               10.9 +/-    1.50      13.2 +/-    1.50  0.050 / 0.040
G15     46.0           27.7                8.7 +/-    1.63      16.1 +/-    1.63  0.050 / 0.040
G20     357.2          65.1               11.2 +/-    0.63      12.2 +/-    0.63  0.080 / 0.130
G21     96.9           74.3               12.3 +/-    0.48      12.7 +/-    0.48  0.070 / 0.100
G24     98.3           27.0               11.6 +/-    1.13      21.6 +/-    1.13  0.080 / 0.070
G27     300.1          34.7               10.8 +/-    0.81      17.2 +/-    0.81  0.070 / 0.040
G32     210.3          33.1               12.8 +/-    1.37      21.1 +/-    1.37  0.060 / 0.090