PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-18:27:40
G02     202.7          29.8               13.6 +/-    1.22      23.9 +/-    1.22  0.100 / 0.240
G06     160.6          66.4               11.0 +/-    0.30      11.9 +/-    0.30  0.110 / 0.250
G12     306.3          14.9                9.6 +/-    1.30      24.0 +/-    1.30  0.110 / 0.100
G17     31.7           52.6               10.5 +/-    1.10      12.9 +/-    1.10  0.110 / 0.090
G19     345.4          68.0                9.9 +/-    0.39      10.6 +/-    0.39  0.050 / 0.030
G24     300.9          36.9               10.7 +/-    1.58      16.5 +/-    1.58  0.040 / 0.040
G28     98.9           33.6               11.3 +/-    1.47      18.5 +/-    1.47  0.030 / 0.030