PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-23:12:30
G10     250.2          26.5               14.2 +/-    1.73      26.7 +/-    1.73  0.030 / 0.040
G13     53.8           30.0                9.4 +/-    1.75      16.6 +/-    1.75  0.030 / 0.040
G15     92.6           59.1               11.3 +/-    1.32      12.9 +/-    1.32  0.120 / 0.270
G16     294.5          16.0               10.4 +/-    0.90      25.2 +/-    0.90  0.130 / 0.320
G20     255.8          25.1                7.7 +/-    2.44      15.0 +/-    2.44  0.100 / 0.150
G21     331.8          59.2                9.4 +/-    0.48      10.8 +/-    0.48  0.060 / 0.150
G26     266.6          15.9               13.4 +/-    2.22      32.7 +/-    2.22  0.030 / 0.030
G29     165.1          51.6               11.9 +/-    0.65      14.7 +/-    0.65  0.030 / 0.030