PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-01:43:00
G02     52.5           38.0                8.8 +/-    1.18      13.3 +/-    1.18  0.050 / 0.050
G05     73.9           66.5               10.0 +/-    0.48      10.8 +/-    0.48  0.060 / 0.060
G12     188.5          44.9               12.5 +/-    0.63      16.8 +/-    0.63  0.290 / 0.450
G21     264.7          12.5                6.7 +/-   15.29      17.7 +/-   15.29  0.250 / 0.360
G25     251.7          57.1               10.7 +/-    1.87      12.5 +/-    1.87  0.070 / 0.050
G29     325.2          49.4                9.6 +/-    0.75      12.2 +/-    0.75  0.040 / 0.050