PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-05:28:10
G10     287.0          48.7               -0.2 +/-    3.04      -0.2 +/-    3.04  0.080 / 0.080
G15     47.8           34.0                2.3 +/-    1.43       3.8 +/-    1.43  0.070 / 0.120
G20     333.3          65.0               -0.5 +/-    0.56      -0.5 +/-    0.56  0.040 / 0.030
G21     67.2           76.5                1.3 +/-    0.92       1.3 +/-    0.92  0.040 / 0.030
G24     105.5          23.0                3.2 +/-    1.62       6.6 +/-    1.62  0.170 / 0.080
G27     309.4          29.1                0.7 +/-    0.84       1.3 +/-    0.84  0.180 / 0.080
G29     166.6          12.4                3.4 +/-    3.65       9.0 +/-    3.65  0.210 / 0.220
G32     208.3          20.5                6.3 +/-    2.13      13.7 +/-    2.13  0.080 / 0.290