PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-18:28:00
G02     200.5          19.1               10.2 +/-    3.27      23.0 +/-    3.27  0.150 / 0.300
G06     169.3          54.2               12.0 +/-    0.90      14.4 +/-    0.90  0.150 / 0.340
G13     227.8          13.6                9.7 +/-    5.15      25.0 +/-    5.15  0.100 / 0.100
G17     19.1           61.4               10.5 +/-    0.71      11.8 +/-    0.71  0.140 / 0.120
G19     311.5          70.5                9.6 +/-    0.64      10.1 +/-    0.64  0.030 / 0.040
G24     310.1          29.7                9.5 +/-    0.96      16.8 +/-    0.96  0.030 / 0.030
G28     87.0           40.2               10.3 +/-    1.18      15.0 +/-    1.18  0.040 / 0.030
G30     157.2          15.8               12.0 +/-    1.68      29.3 +/-    1.68  0.040 / 0.030