PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-01:28:10
G02     51.9           38.6                9.2 +/-    0.80      13.7 +/-    0.80  0.050 / 0.060
G05     75.8           66.9               11.3 +/-    0.19      12.1 +/-    0.19  0.050 / 0.060
G12     188.7          45.7               12.5 +/-    1.71      16.7 +/-    1.71  0.050 / 0.090
G21     264.1          11.9               11.4 +/-    2.39      30.5 +/-    2.39  0.060 / 0.070
G25     253.4          57.4               11.2 +/-    0.57      13.0 +/-    0.57  0.130 / 0.440
G29     324.5          48.6               11.7 +/-    1.02      15.0 +/-    1.02  0.170 / 0.590