PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-00:27:40
G02     204.3          39.9               14.2 +/-    1.70      20.7 +/-    1.70  0.050 / 0.070
G06     163.7          70.7               13.1 +/-    0.40      13.8 +/-    0.40  0.070 / 0.070
G12     308.6          16.2                6.5 +/-    2.70      15.8 +/-    2.70  0.320 / 0.240
G17     40.9           44.8                7.4 +/-    0.94      10.0 +/-    0.94  0.290 / 0.260
G19     9.2            62.8                9.0 +/-    0.52       9.9 +/-    0.52  0.090 / 0.120
G24     291.1          40.9                7.7 +/-    8.37      11.0 +/-    8.37  0.070 / 0.110
G28     104.5          31.8                9.3 +/-    1.60      15.6 +/-    1.60  0.030 / 0.030