PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-21:27:40
G02     204.4          39.5               15.2 +/-    0.99      22.3 +/-    0.99  0.050 / 0.120
G06     157.3          72.2               13.3 +/-    0.50      13.8 +/-    0.50  0.050 / 0.120
G12     308.6          16.3               10.2 +/-    2.39      24.5 +/-    2.39  0.070 / 0.080
G17     39.8           45.9               10.9 +/-    1.13      14.5 +/-    1.13  0.070 / 0.090
G19     10.7           62.4               12.1 +/-    0.85      13.5 +/-    0.85  0.310 / 0.320
G24     291.9          40.3               12.9 +/-   10.12      18.6 +/-   10.12  0.300 / 0.260
G28     104.2          32.4               11.2 +/-    1.29      18.6 +/-    1.29  0.030 / 0.020