PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/29-18:12:30
G02     3.5            73.3               14.8 +/-    0.61      15.4 +/-    0.61  0.030 / 0.040
G05     165.4          39.1               16.2 +/-    0.88      23.9 +/-    0.88  0.030 / 0.030
G06     44.6           32.4               11.7 +/-    0.44      19.5 +/-    0.44  0.050 / 0.080
G12     281.0          78.8               11.9 +/-    0.82      12.2 +/-    0.82  0.050 / 0.100
G19     84.6           20.1               13.4 +/-    2.20      29.5 +/-    2.20  0.110 / 0.270
G24     223.1          16.9               15.1 +/-    3.03      35.9 +/-    3.03  0.150 / 0.210
G25     313.6          41.2               14.7 +/-    1.93      20.9 +/-    1.93  0.120 / 0.260
G29     294.2          16.7               14.0 +/-    2.84      33.4 +/-    2.84  0.090 / 0.220