PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/18-00:43:00
G10     284.4          46.3                8.8 +/-    1.56      11.7 +/-    1.56  0.040 / 0.040
G15     49.0           37.7                7.4 +/-    0.74      11.2 +/-    0.74  0.040 / 0.040
G18     334.6          66.8                8.1 +/-    0.40       8.8 +/-    0.40  0.100 / 0.190
G20     65.6           22.8                7.1 +/-    0.78      14.6 +/-    0.78  0.100 / 0.180
G21     61.5           77.1                9.9 +/-    0.65      10.1 +/-    0.65  0.040 / 0.060
G24     108.0          22.4               11.4 +/-    1.24      23.7 +/-    1.24  0.040 / 0.060
G27     307.5          30.8                9.0 +/-    1.75      15.5 +/-    1.75  0.110 / 0.350
G29     167.5          13.5               11.8 +/-    1.45      30.4 +/-    1.45  0.110 / 0.270
G32     208.1          22.1               12.9 +/-    1.30      26.9 +/-    1.30  0.060 / 0.090