PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-19:58:00
G02     328.6          79.2               34.2 +/-   27.37      34.7 +/-   27.37  0.030 / 0.040
G05     167.0          32.3                4.6 +/-   19.92       7.7 +/-   19.92  0.030 / 0.040
G06     42.3           38.7               -2.5 +/-   19.79      -3.7 +/-   19.79  0.080 / 0.280
G12     307.8          73.8               11.1 +/-    0.59      11.5 +/-    0.59  0.160 / 0.320
G19     77.7           24.7              -17.2 +/-   63.69     -33.8 +/-   63.69  0.100 / 0.180
G24     228.9          22.4               12.2 +/-    5.69      25.3 +/-    5.69  0.100 / 0.190
G25     316.4          35.0                7.5 +/-    8.09      11.9 +/-    8.09  0.100 / 0.110
G29     287.8          10.8                1.3 +/-   28.73       3.6 +/-   28.73  0.110 / 0.120