PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-09:57:40
G02     36.2           52.0                5.6 +/-    0.68       7.0 +/-    0.68  0.030 / 0.030
G05     141.5          62.4                9.9 +/-    0.56      11.0 +/-    0.56  0.030 / 0.040
G06     53.8           14.6                4.1 +/-    2.51      10.4 +/-    2.51  0.030 / 0.040
G12     192.5          65.8                8.4 +/-    0.58       9.1 +/-    0.58  0.030 / 0.030
G25     295.1          54.2                6.7 +/-    1.52       8.1 +/-    1.52  0.070 / 0.130
G29     307.2          27.8                5.4 +/-    2.46       9.9 +/-    2.46  0.060 / 0.110