PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-21:12:50
G02     202.3          32.5               15.4 +/-    0.90      25.6 +/-    0.90  0.140 / 0.270
G06     166.2          64.9               15.6 +/-    2.03      17.0 +/-    2.03  0.180 / 0.320
G12     304.9          11.2                3.5 +/-   25.77       9.5 +/-   25.77  0.040 / 0.040
G17     33.6           50.9               10.4 +/-    0.49      13.0 +/-    0.49  0.050 / 0.050
G19     356.9          66.5               11.4 +/-    0.65      12.3 +/-    0.65  0.050 / 0.130
G24     299.6          37.3               13.7 +/-    1.47      20.8 +/-    1.47  0.050 / 0.140
G28     97.3           36.8               12.4 +/-    1.04      19.0 +/-    1.04  0.060 / 0.110