PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-21:58:00
G02     48.8           41.5                9.8 +/-    1.22      14.0 +/-    1.22  0.040 / 0.050
G05     84.9           68.5               11.0 +/-    0.53      11.8 +/-    0.53  0.040 / 0.050
G12     188.8          48.3               13.0 +/-    1.00      16.7 +/-    1.00  0.050 / 0.080
G25     261.0          57.9               10.6 +/-    1.76      12.3 +/-    1.76  0.050 / 0.060
G29     321.1          44.3               10.3 +/-    0.47      14.0 +/-    0.47  0.040 / 0.050