PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/22-18:57:40
G03     197.9          41.3               12.9 +/-    1.42      18.4 +/-    1.42  0.080 / 0.100
G07     271.6          28.5               12.8 +/-    1.17      23.1 +/-    1.17  0.100 / 0.160
G08     153.6          11.1                6.9 +/-   34.43      18.8 +/-   34.43  0.090 / 0.240
G09     317.0          41.3               10.6 +/-    0.73      15.1 +/-    0.73  0.120 / 0.180
G16     66.0           62.0               10.7 +/-    0.80      11.9 +/-    0.80  0.090 / 0.090
G22     182.6          24.5               13.5 +/-    0.78      26.8 +/-    0.78  0.050 / 0.090
G23     345.6          72.6               11.4 +/-    0.72      11.9 +/-    0.72  0.060 / 0.050
G26     46.6           35.3                9.9 +/-    1.44      15.6 +/-    1.44  0.050 / 0.060
G27     124.5          20.4               14.0 +/-    1.28      30.4 +/-    1.28  0.040 / 0.030