PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-15:12:30
G05     46.8           23.5                5.3 +/-    1.06      10.7 +/-    1.06  0.080 / 0.400
G13     82.0           36.0                9.4 +/-    0.58      14.7 +/-    0.58  0.110 / 0.360
G15     134.8          48.3               11.1 +/-    0.90      14.3 +/-    0.90  0.060 / 0.080
G20     243.8          33.1               10.5 +/-    1.86      17.2 +/-    1.86  0.050 / 0.090
G21     310.3          45.4                8.1 +/-    1.10      10.8 +/-    1.10  0.030 / 0.020
G25     198.0          12.6                7.8 +/-    5.44      20.4 +/-    5.44  0.020 / 0.030
G26     294.2          19.8                7.6 +/-    2.11      16.8 +/-    2.11  0.050 / 0.120
G29     147.7          77.3               11.9 +/-    0.79      12.2 +/-    0.79  0.050 / 0.130