PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-19:58:00
G02     239.7          74.4               16.3 +/-    0.55      16.8 +/-    0.55  0.110 / 0.190
G05     171.7          16.1               20.9 +/-    1.70      50.6 +/-    1.70  0.170 / 0.190
G06     40.9           57.1               15.8 +/-    0.45      18.4 +/-    0.45  0.050 / 0.050
G12     322.3          54.5               15.5 +/-    1.61      18.6 +/-    1.61  0.050 / 0.060
G17     70.4           23.1               14.0 +/-    0.86      28.5 +/-    0.86  0.030 / 0.030
G19     54.7           41.0               14.9 +/-    0.90      21.3 +/-    0.90  0.030 / 0.040
G24     244.3          34.9               18.4 +/-    1.88      29.2 +/-    1.88  0.080 / 0.080
G25     316.6          12.1               14.4 +/-    1.57      38.3 +/-    1.57  0.070 / 0.110