PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-16:28:00
G02     38.8           50.8               10.5 +/-    0.54      13.1 +/-    0.54  0.040 / 0.040
G05     135.2          66.0               12.2 +/-    0.81      13.2 +/-    0.81  0.030 / 0.050
G06     56.9           13.0                9.1 +/-    0.91      23.8 +/-    0.91  0.050 / 0.040
G12     195.1          61.4               12.6 +/-    0.67      14.2 +/-    0.67  0.050 / 0.050
G20     199.4          32.4               12.1 +/-    1.24      20.3 +/-    1.24  0.040 / 0.040
G25     283.3          58.2               12.7 +/-    1.06      14.6 +/-    1.06  0.040 / 0.040
G29     314.2          37.0               10.2 +/-    1.50      15.6 +/-    1.50  0.080 / 0.110