PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-21:43:00
G02     227.7          69.9               17.0 +/-    0.50      18.0 +/-    0.50  0.050 / 0.070
G05     173.6          11.3               11.1 +/-   35.42      30.2 +/-   35.42  0.030 / 0.050
G06     43.5           63.8               16.3 +/-    0.56      17.9 +/-    0.56  0.060 / 0.080
G12     321.4          46.9               16.3 +/-    0.60      21.4 +/-    0.60  0.080 / 0.070
G17     64.6           28.0               14.7 +/-    1.85      26.9 +/-    1.85  0.230 / 0.300
G19     48.6           44.3               16.6 +/-    1.22      22.6 +/-    1.22  0.230 / 0.440
G24     251.9          38.1               18.9 +/-    1.92      28.4 +/-    1.92  0.030 / 0.020