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               12.8 +/-    0.51      12.9 +/-    0.51  0.040 / 0.040
G05     165.6          28.8               18.3 +/-    0.92      32.9 +/-    0.92  0.030 / 0.040
G06     39.3           48.2               11.1 +/-    0.77      14.3 +/-    0.77  0.100 / 0.160
G12     317.8          62.6               13.5 +/-    1.76      15.0 +/-    1.76  0.110 / 0.130
G17     81.6           13.9               12.9 +/-    2.27      32.9 +/-    2.27  0.120 / 0.170
G19     69.7           30.1               13.5 +/-    0.73      23.7 +/-    0.73  0.080 / 0.180
G24     231.6          26.1               18.3 +/-    1.81      34.9 +/-    1.81  0.050 / 0.040
G25     317.4          24.5               11.3 +/-    2.61      22.3 +/-    2.61  0.040 / 0.040