PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-01:57:30
G08     312.0          18.0                6.4 +/-    1.36      14.9 +/-    1.36  0.030 / 0.030
G10     321.6          58.0                8.6 +/-    0.82      10.0 +/-    0.82  0.030 / 0.040
G14     215.8          28.3               11.9 +/-    2.02      21.6 +/-    2.02  0.060 / 0.130
G15     46.0           16.3                6.3 +/-    0.86      15.1 +/-    0.86  0.070 / 0.110
G18     28.4           61.9               10.1 +/-    0.58      11.3 +/-    0.58  0.050 / 0.080
G24     81.0           30.5                8.1 +/-    0.89      14.0 +/-    0.89  0.050 / 0.080
G27     278.9          38.1                9.1 +/-    2.19      13.6 +/-    2.19  0.080 / 0.180
G32     219.9          46.4               11.7 +/-    0.80      15.4 +/-    0.80  0.080 / 0.210