PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-17:28:10
G03     196.5          40.1                9.7 +/-    0.60      14.2 +/-    0.60  0.100 / 0.150
G07     272.4          29.5                9.3 +/-    1.33      16.4 +/-    1.33  0.070 / 0.130
G08     153.7          11.3                4.0 +/-   33.65      11.0 +/-   33.65  0.060 / 0.070
G09     317.0          41.3                8.7 +/-    0.66      12.5 +/-    0.66  0.060 / 0.090
G16     66.9           62.9                7.8 +/-    0.64       8.7 +/-    0.64  0.040 / 0.040
G22     181.6          23.1                8.4 +/-    1.50      17.3 +/-    1.50  0.050 / 0.030
G23     347.7          73.4                9.0 +/-    0.47       9.3 +/-    0.47  0.050 / 0.060
G26     46.1           33.8                8.6 +/-    0.87      14.0 +/-    0.87  0.050 / 0.060
G27     123.8          20.8               11.3 +/-    3.10      24.4 +/-    3.10  0.090 / 0.130