PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-23:43:00
G08     275.5          21.5               15.2 +/-    1.89      32.2 +/-    1.89  0.080 / 0.250
G10     40.2           62.0               14.7 +/-    0.36      16.5 +/-    0.36  0.100 / 0.250
G11     316.3          11.8               12.9 +/-    4.11      34.6 +/-    4.11  0.040 / 0.070
G14     249.8          61.0               15.4 +/-    0.66      17.3 +/-    0.66  0.040 / 0.060
G18     82.0           42.2               14.9 +/-    0.81      20.9 +/-    0.81  0.060 / 0.130
G21     151.7          22.8               16.8 +/-    1.70      34.6 +/-    1.70  0.060 / 0.130
G24     45.2           18.1               13.0 +/-    0.93      29.9 +/-    0.93  0.150 / 0.170
G27     238.0          21.9               18.7 +/-    4.40      39.4 +/-    4.40  0.080 / 0.200
G31     182.2          18.2               18.9 +/-    3.11      43.5 +/-    3.11  0.030 / 0.030