PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-00:28:00
G02     320.3          81.1               13.0 +/-    0.76      13.2 +/-    0.76  0.190 / 0.170
G05     165.6          28.8               16.8 +/-    1.49      30.2 +/-    1.49  0.140 / 0.220
G06     39.3           48.2               11.4 +/-    0.93      14.6 +/-    0.93  0.030 / 0.030
G12     317.8          62.6               12.5 +/-    0.89      13.9 +/-    0.89  0.040 / 0.040
G17     81.6           13.9               11.9 +/-    1.61      30.3 +/-    1.61  0.140 / 0.190
G19     69.7           30.1               12.7 +/-    1.18      22.3 +/-    1.18  0.100 / 0.140
G24     231.6          26.1               15.8 +/-    2.78      30.1 +/-    2.78  0.060 / 0.030
G25     317.4          24.5                9.6 +/-    2.14      18.9 +/-    2.14  0.050 / 0.040