PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-18:58:00
G02     225.4          65.2               41.2 +/-   23.89      44.9 +/-   23.89  0.040 / 0.060
G06     44.4           65.3              -13.7 +/-   21.81     -14.9 +/-   21.81  0.040 / 0.050
G12     321.4          46.1                8.8 +/-    0.81      11.7 +/-    0.81  0.080 / 0.110
G17     66.9           24.3               10.3 +/-    0.80      20.4 +/-    0.80  0.060 / 0.130
G19     52.0           41.4              -40.3 +/-   60.29     -57.4 +/-   60.29  0.060 / 0.080
G24     255.7          38.7               12.5 +/-    1.13      18.6 +/-    1.13  0.050 / 0.090
G25     315.5          10.8               -8.0 +/-   37.66     -21.9 +/-   37.66  0.180 / 0.480