PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/12-11:57:00
G02     35.1           53.0                9.4 +/-    1.04      11.5 +/-    1.04  0.030 / 0.030
G05     145.0          61.8               16.0 +/-    0.57      17.9 +/-    0.57  0.030 / 0.030
G06     54.1           14.1                3.7 +/-    1.29       9.3 +/-    1.29  0.030 / 0.040
G12     189.8          64.6               13.0 +/-    0.51      14.2 +/-    0.51  0.030 / 0.040
G25     295.5          53.8                9.6 +/-    2.44      11.6 +/-    2.44  0.070 / 0.120
G29     307.3          27.8                7.4 +/-    1.89      13.6 +/-    1.89  0.060 / 0.090