PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-16:58:00
G02     231.1          69.4                7.0 +/-    1.07       7.4 +/-    1.07  0.090 / 0.240
G05     173.8          12.3               13.3 +/-    2.08      35.3 +/-    2.08  0.080 / 0.220
G06     42.3           60.1                8.1 +/-    0.54       9.1 +/-    0.54  0.100 / 0.120
G12     322.8          52.7                7.3 +/-    1.64       9.0 +/-    1.64  0.100 / 0.130
G17     68.3           23.5                7.4 +/-    1.03      14.9 +/-    1.03  0.030 / 0.060
G19     49.8           44.1                7.1 +/-    0.58       9.7 +/-    0.58  0.040 / 0.060
G24     247.6          36.9               10.1 +/-    1.96      15.6 +/-    1.96  0.040 / 0.040