PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-19:27:50
G08     310.4          18.6               10.4 +/-    1.13      23.6 +/-    1.13  0.070 / 0.060
G10     327.7          59.2               10.3 +/-    0.58      11.7 +/-    0.58  0.080 / 0.070
G14     217.4          30.1               13.3 +/-    2.63      23.3 +/-    2.63  0.040 / 0.040
G15     46.5           11.1               10.2 +/-    1.39      27.8 +/-    1.39  0.040 / 0.040
G18     38.2           59.3               11.0 +/-    0.35      12.6 +/-    0.35  0.290 / 0.240
G21     132.7          54.2               13.8 +/-    0.31      16.6 +/-    0.31  0.060 / 0.070
G24     77.2           30.6               10.4 +/-    0.88      18.1 +/-    0.88  0.060 / 0.080
G27     275.1          37.8               12.7 +/-    2.05      19.2 +/-    2.05  0.120 / 0.060
G32     222.3          48.9               14.4 +/-    1.71      18.4 +/-    1.71  0.120 / 0.210