PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-22:12:40
G02     202.6          33.9               16.8 +/-    1.05      27.2 +/-    1.05  0.070 / 0.090
G06     166.4          65.8               14.5 +/-    0.48      15.7 +/-    0.48  0.060 / 0.110
G12     305.6          12.0                7.7 +/-   14.51      20.6 +/-   14.51  0.130 / 0.110
G17     35.2           49.6               11.4 +/-    1.38      14.5 +/-    1.38  0.090 / 0.110
G19     359.1          65.9               11.1 +/-    0.81      12.0 +/-    0.81  0.130 / 0.230
G24     298.1          38.1               12.0 +/-    2.36      18.0 +/-    2.36  0.160 / 0.300
G28     98.8           35.8               13.5 +/-    0.94      21.1 +/-    0.94  0.030 / 0.020