PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/19-22:43:00
G03     217.7          61.0                7.4 +/-    0.67       8.4 +/-    0.67  0.080 / 0.230
G07     255.5          15.6                9.5 +/-    1.10      23.3 +/-    1.10  0.080 / 0.250
G09     309.6          27.8                5.9 +/-    1.74      10.9 +/-    1.74  0.030 / 0.040
G16     106.3          64.0               10.2 +/-    1.12      11.2 +/-    1.12  0.030 / 0.040
G22     190.5          45.0                7.4 +/-    1.35      10.0 +/-    1.35  0.040 / 0.060
G23     325.3          55.5                7.2 +/-    0.84       8.5 +/-    0.84  0.040 / 0.060
G26     58.4           47.7                5.5 +/-    0.34       7.2 +/-    0.34  0.070 / 0.070
G31     56.6           15.6                5.6 +/-    1.76      13.6 +/-    1.76  0.060 / 0.060