PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-20:12:30
G02     202.6          32.0               13.1 +/-    1.20      22.1 +/-    1.20  0.080 / 0.250
G06     160.0          67.4               11.2 +/-    0.28      12.0 +/-    0.28  0.080 / 0.250
G12     306.7          14.8                8.6 +/-    2.03      21.4 +/-    2.03  0.100 / 0.090
G17     31.6           52.7               10.7 +/-    1.15      13.0 +/-    1.15  0.110 / 0.070
G19     350.3          67.3               10.0 +/-    0.35      10.8 +/-    0.35  0.030 / 0.030
G24     300.0          37.3                9.5 +/-    2.16      14.5 +/-    2.16  0.030 / 0.030
G28     100.2          32.7                9.9 +/-    1.24      16.5 +/-    1.24  0.040 / 0.030