PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-00:57:50
G10     279.1          43.9                8.1 +/-    0.79      11.0 +/-    0.79  0.040 / 0.040
G13     38.6           11.1                8.8 +/-    2.30      23.9 +/-    2.30  0.040 / 0.040
G15     51.3           41.7                8.2 +/-    0.93      11.7 +/-    0.93  0.110 / 0.160
G18     323.7          66.4                7.2 +/-    0.75       7.8 +/-    0.75  0.110 / 0.150
G20     62.7           25.7                8.7 +/-    1.11      16.7 +/-    1.11  0.060 / 0.070
G21     40.9           76.9                9.8 +/-    0.54      10.0 +/-    0.54  0.050 / 0.050
G24     112.1          20.1               13.1 +/-    1.71      28.8 +/-    1.71  0.060 / 0.230
G27     311.0          28.1                7.9 +/-    1.12      14.3 +/-    1.12  0.080 / 0.210
G29     167.7          17.8               12.0 +/-    1.16      28.0 +/-    1.16  0.070 / 0.120
G32     206.8          18.2               11.0 +/-    2.63      25.3 +/-    2.63  0.080 / 0.100