PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-04:43:10
G07     323.3          54.1                4.0 +/-    0.49       4.8 +/-    0.49  0.170 / 0.300
G08     110.0          48.8                5.9 +/-    0.73       7.5 +/-    0.73  0.180 / 0.270
G09     213.8          81.1                4.5 +/-    0.27       4.5 +/-    0.27  0.040 / 0.040
G16     43.7           19.3                2.6 +/-    2.28       5.7 +/-    2.28  0.020 / 0.040
G23     152.7          51.6                5.8 +/-    0.49       7.2 +/-    0.49  0.150 / 0.320
G27     62.3           34.3                5.3 +/-    1.27       8.5 +/-    1.27  0.100 / 0.250
G28     231.8          23.9                4.8 +/-    2.17       9.6 +/-    2.17  0.030 / 0.040
G30     295.8          30.2                3.5 +/-    1.83       6.0 +/-    1.83  0.040 / 0.050