PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-19:58:00
G02     201.1          25.2               14.1 +/-    2.24      27.4 +/-    2.24  0.120 / 0.110
G06     166.5          60.1               11.8 +/-    0.71      13.4 +/-    0.71  0.130 / 0.130
G17     24.4           57.8               10.3 +/-    1.00      11.9 +/-    1.00  0.330 / 0.610
G19     331.1          69.8                9.6 +/-    0.46      10.2 +/-    0.46  0.150 / 0.450
G24     306.2          33.3                8.4 +/-    1.75      13.7 +/-    1.75  0.050 / 0.030
G28     93.2           36.9                9.9 +/-    0.68      15.2 +/-    0.68  0.040 / 0.030
G30     157.6          10.2               11.0 +/-   16.15      30.6 +/-   16.15  0.030 / 0.030