PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-00:12:30
G05     47.3           20.0                6.5 +/-    2.51      14.2 +/-    2.51  0.280 / 0.260
G13     80.7           35.5               11.4 +/-    0.76      17.9 +/-    0.76  0.200 / 0.210
G15     129.5          49.5               12.1 +/-    0.68      15.4 +/-    0.68  0.090 / 0.080
G20     244.3          33.3                9.9 +/-    1.67      16.2 +/-    1.67  0.070 / 0.070
G21     309.1          43.7                9.7 +/-    1.15      13.3 +/-    1.15  0.050 / 0.100
G25     202.1          15.2               10.8 +/-    2.54      26.8 +/-    2.54  0.060 / 0.110
G26     293.1          19.9                9.0 +/-    1.73      19.7 +/-    1.73  0.030 / 0.050
G29     146.1          76.1               10.2 +/-    1.02      10.5 +/-    1.02  0.030 / 0.040