PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-19:13:00
G02     200.8          23.9               17.5 +/-    2.81      35.0 +/-    2.81  0.050 / 0.060
G06     169.9          56.8               15.6 +/-    0.80      18.3 +/-    0.80  0.040 / 0.070
G13     223.7          11.0               16.6 +/-    3.70      45.3 +/-    3.70  0.130 / 0.270
G17     24.5           57.8               12.5 +/-    0.79      14.4 +/-    0.79  0.300 / 0.200
G19     336.4          70.3               12.1 +/-    0.66      12.8 +/-    0.66  0.090 / 0.130
G24     307.1          32.1               12.7 +/-    1.97      21.2 +/-    1.97  0.110 / 0.110
G28     88.2           42.0               12.6 +/-    1.02      17.7 +/-    1.02  0.160 / 0.570