PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/01-20:42:50
G02     216.2          60.4               12.6 +/-    0.70      14.3 +/-    0.70  0.110 / 0.430
G06     59.8           75.7               10.5 +/-    1.02      10.8 +/-    1.02  0.130 / 0.520
G12     317.5          33.7                9.4 +/-    0.83      15.2 +/-    0.83  0.090 / 0.080
G17     56.6           32.8                7.9 +/-    0.94      13.1 +/-    0.94  0.080 / 0.110
G19     39.9           48.4                9.2 +/-    0.53      11.8 +/-    0.53  0.040 / 0.060
G24     264.7          41.4               10.9 +/-    1.52      15.5 +/-    1.52  0.040 / 0.060
G28     121.1          18.2               11.8 +/-    1.32      27.2 +/-    1.32  0.060 / 0.110