PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-23:57:40
G02     231.1          72.8               14.3 +/-    0.69      14.8 +/-    0.69  0.040 / 0.070
G05     172.6          13.1               21.6 +/-    3.62      56.2 +/-    3.62  0.040 / 0.070
G06     42.5           62.6               13.9 +/-    0.36      15.4 +/-    0.36  0.060 / 0.070
G12     321.3          47.5               13.6 +/-    1.31      17.7 +/-    1.31  0.050 / 0.050
G17     65.3           28.2               12.1 +/-    0.54      21.9 +/-    0.54  0.080 / 0.240
G19     51.4           42.6               13.0 +/-    1.19      18.2 +/-    1.19  0.050 / 0.260
G24     250.3          37.3               16.4 +/-    0.94      25.1 +/-    0.94  0.060 / 0.110