PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-23:42:30
G02     241.6          76.4               11.8 +/-    0.36      12.1 +/-    0.36  0.050 / 0.060
G05     170.9          16.7               23.3 +/-    1.85      55.5 +/-    1.85  0.050 / 0.060
G06     40.8           58.1               11.5 +/-    0.63      13.2 +/-    0.63  0.080 / 0.150
G12     321.7          52.1               13.2 +/-    1.10      16.3 +/-    1.10  0.060 / 0.150
G17     69.1           25.4               11.2 +/-    1.40      21.8 +/-    1.40  0.160 / 0.350
G19     55.8           40.0               11.2 +/-    0.54      16.3 +/-    0.54  0.230 / 0.460
G24     245.4          35.0               15.8 +/-    1.27      25.0 +/-    1.27  0.030 / 0.040
G25     316.6          11.3               -5.3 +/-   34.67     -14.3 +/-   34.67  0.030 / 0.040