PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-19:27:50
G02     58.7           33.9                8.4 +/-    0.78      13.6 +/-    0.78  0.050 / 0.060
G05     57.5           61.2                9.9 +/-    0.43      11.1 +/-    0.43  0.040 / 0.070
G12     184.4          32.8               12.6 +/-    0.79      20.8 +/-    0.79  0.090 / 0.090
G13     126.3          15.3               14.0 +/-    3.19      34.5 +/-    3.19  0.100 / 0.110
G15     163.6          12.9               15.4 +/-    2.60      40.4 +/-    2.60  0.190 / 0.560
G21     271.8          16.8               13.7 +/-    1.91      32.6 +/-    1.91  0.200 / 0.550
G25     237.2          51.8               11.5 +/-    1.11      14.2 +/-    1.11  0.060 / 0.090
G29     329.3          55.2               10.3 +/-    1.34      12.3 +/-    1.34  0.060 / 0.090