PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-23:28:00
G02     297.9          81.6               13.0 +/-    0.94      13.1 +/-    0.94  0.110 / 0.200
G05     166.9          25.9               18.9 +/-    2.36      36.2 +/-    2.36  0.090 / 0.240
G06     39.1           50.6               11.6 +/-    0.56      14.6 +/-    0.56  0.030 / 0.030
G12     319.3          59.5               12.2 +/-    0.60      13.9 +/-    0.60  0.040 / 0.030
G17     78.9           16.1               11.6 +/-    1.38      28.1 +/-    1.38  0.080 / 0.160
G19     67.0           31.8               12.7 +/-    1.09      21.4 +/-    1.09  0.090 / 0.170
G24     234.4          28.2               16.3 +/-    2.96      29.6 +/-    2.96  0.030 / 0.040
G25     317.4          21.4                8.9 +/-    2.43      18.8 +/-    2.43  0.040 / 0.050