PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-22:12:20
G02     52.8           38.1                9.4 +/-    1.93      14.1 +/-    1.93  0.050 / 0.040
G05     71.9           66.3               10.5 +/-    0.62      11.4 +/-    0.62  0.040 / 0.050
G12     187.4          43.0               12.4 +/-    0.70      17.2 +/-    0.70  0.060 / 0.070
G13     132.9          9.8                -7.5 +/-    4.78     -21.0 +/-    4.78  0.050 / 0.070
G25     251.2          56.5               11.6 +/-    1.81      13.6 +/-    1.81  0.210 / 0.430
G29     324.5          48.5                9.4 +/-    0.53      12.0 +/-    0.53  0.040 / 0.060