PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-01:12:30
G02     51.9           38.5                9.6 +/-    0.85      14.3 +/-    0.85  0.040 / 0.060
G05     75.4           66.8               11.2 +/-    0.79      12.1 +/-    0.79  0.040 / 0.050
G12     188.7          45.5               13.9 +/-    0.75      18.7 +/-    0.75  0.270 / 0.400
G21     264.2          11.9                7.2 +/-   16.80      19.3 +/-   16.80  0.280 / 0.470
G25     253.3          57.3               10.7 +/-    1.81      12.5 +/-    1.81  0.040 / 0.080
G29     324.5          48.6               10.9 +/-    0.78      14.0 +/-    0.78  0.050 / 0.070