PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-00:28:10
G02     219.1          65.1               12.7 +/-    1.45      13.9 +/-    1.45  0.050 / 0.080
G06     50.5           71.1               10.3 +/-    0.52      10.8 +/-    0.52  0.030 / 0.080
G12     319.6          39.2                9.7 +/-    0.94      14.3 +/-    0.94  0.070 / 0.080
G17     57.8           33.8                9.3 +/-    0.48      15.1 +/-    0.48  0.050 / 0.090
G19     42.5           47.6               10.1 +/-    0.44      13.1 +/-    0.44  0.040 / 0.050
G24     260.8          40.6               12.4 +/-    1.20      17.9 +/-    1.20  0.040 / 0.060
G28     125.1          10.6               13.7 +/-    3.83      37.8 +/-    3.83  0.100 / 0.410