PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/02-19:42:50
G02     203.0          34.0               15.5 +/-    1.02      25.1 +/-    1.02  0.050 / 0.130
G06     162.3          67.6               13.1 +/-    0.93      14.0 +/-    0.93  0.050 / 0.130
G12     306.0          12.8               10.5 +/-    2.13      27.5 +/-    2.13  0.070 / 0.110
G17     34.5           50.2                9.6 +/-    0.82      12.1 +/-    0.82  0.070 / 0.090
G19     1.8            65.3               10.1 +/-    0.60      11.0 +/-    0.60  0.090 / 0.110
G24     298.0          37.9               12.1 +/-    0.62      18.2 +/-    0.62  0.070 / 0.120
G28     99.1           36.0               11.0 +/-    0.48      17.1 +/-    0.48  0.110 / 0.260