PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-23:28:10
G02     59.2           33.2               10.7 +/-    2.48      17.5 +/-    2.48  0.070 / 0.080
G05     57.8           60.6               11.6 +/-    0.71      13.1 +/-    0.71  0.070 / 0.090
G12     183.2          31.0               13.8 +/-    1.62      23.6 +/-    1.62  0.020 / 0.030
G13     128.2          15.1               15.3 +/-    2.81      37.9 +/-    2.81  0.030 / 0.030
G15     165.0          11.4                8.2 +/-   26.94      22.2 +/-   26.94  0.180 / 0.310
G21     270.9          16.5               13.9 +/-    2.18      33.2 +/-    2.18  0.110 / 0.270
G25     237.0          52.0               12.7 +/-    2.92      15.6 +/-    2.92  0.180 / 0.390
G29     327.4          53.3               11.7 +/-    1.90      14.2 +/-    1.90  0.140 / 0.340