PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-23:28:10
G02     301.1          81.5               11.9 +/-    1.06      12.0 +/-    1.06  0.190 / 0.260
G05     166.7          26.3               18.8 +/-    2.08      35.6 +/-    2.08  0.230 / 0.360
G06     39.2           50.2               11.6 +/-    0.66      14.6 +/-    0.66  0.080 / 0.160
G12     319.1          60.0               12.1 +/-    0.75      13.8 +/-    0.75  0.080 / 0.130
G17     79.3           15.8               11.3 +/-    1.74      27.6 +/-    1.74  0.030 / 0.050
G19     67.4           31.5               12.3 +/-    0.92      20.9 +/-    0.92  0.030 / 0.040
G24     234.1          27.9               15.5 +/-    1.02      28.3 +/-    1.02  0.040 / 0.030
G25     317.4          21.8                9.1 +/-    1.96      19.2 +/-    1.96  0.040 / 0.040