PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-23:28:00
G02     238.0          75.3               11.9 +/-    0.60      12.2 +/-    0.60  0.050 / 0.060
G05     171.4          15.6               15.6 +/-    2.86      38.3 +/-    2.86  0.050 / 0.060
G06     41.2           59.3               11.5 +/-    0.65      13.2 +/-    0.65  0.110 / 0.250
G12     321.7          50.9               12.1 +/-    1.00      15.1 +/-    1.00  0.160 / 0.160
G17     68.1           26.0               11.4 +/-    0.81      21.8 +/-    0.81  0.120 / 0.520
G19     54.5           40.8               11.8 +/-    0.36      17.0 +/-    0.36  0.030 / 0.040
G24     246.7          35.6               14.5 +/-    1.02      22.8 +/-    1.02  0.030 / 0.030
G25     316.3          10.3              -15.3 +/-   28.00     -42.5 +/-   28.00  0.060 / 0.130