PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-15:57:40
G02     231.6          71.4               10.3 +/-    0.69      10.8 +/-    0.69  0.030 / 0.050
G05     176.5          10.2               -7.0 +/-   25.33     -19.5 +/-   25.33  0.030 / 0.060
G06     42.1           63.0                9.7 +/-    0.80      10.8 +/-    0.80  0.180 / 0.400
G12     321.5          48.3                8.4 +/-    1.21      10.8 +/-    1.21  0.170 / 0.350
G17     69.8           22.1                8.6 +/-    1.26      18.1 +/-    1.26  0.100 / 0.300
G19     55.5           39.2                9.5 +/-    0.75      14.1 +/-    0.75  0.030 / 0.040
G24     251.3          37.0               10.9 +/-    0.59      16.6 +/-    0.59  0.040 / 0.040
G25     316.2          12.3                5.8 +/-    5.55      15.5 +/-    5.55  0.030 / 0.030