PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-23:58:10
G02     254.7          79.2               11.7 +/-    0.54      11.9 +/-    0.54  0.050 / 0.040
G05     169.5          19.8               18.5 +/-    1.47      40.8 +/-    1.47  0.050 / 0.040
G06     40.2           54.6               11.8 +/-    0.76      14.1 +/-    0.76  0.080 / 0.120
G12     321.5          55.6               11.8 +/-    0.78      13.9 +/-    0.78  0.080 / 0.120
G17     72.0           23.4               12.1 +/-    1.03      24.6 +/-    1.03  0.120 / 0.180
G19     59.5           37.7               12.4 +/-    1.41      18.8 +/-    1.41  0.110 / 0.150
G24     241.7          32.9               14.4 +/-    1.02      23.9 +/-    1.02  0.060 / 0.040
G25     317.2          14.4                9.2 +/-    3.92      23.2 +/-    3.92  0.060 / 0.030