PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/28-02:42:40
G08     264.1          17.5                8.2 +/-    1.94      19.2 +/-    1.94  0.120 / 0.460
G10     62.6           58.6                4.9 +/-    0.54       5.6 +/-    0.54  0.120 / 0.470
G11     309.2          19.8                8.4 +/-    1.26      18.5 +/-    1.26  0.150 / 0.370
G14     273.8          68.5                6.2 +/-    1.08       6.6 +/-    1.08  0.150 / 0.280
G18     92.8           36.1                5.6 +/-    0.59       8.7 +/-    0.59  0.030 / 0.040
G21     154.3          13.3                7.5 +/-    3.11      19.4 +/-    3.11  0.030 / 0.030
G24     39.7           10.3                4.7 +/-    1.65      12.9 +/-    1.65  0.050 / 0.060
G27     229.3          14.4                9.5 +/-    1.64      23.9 +/-    1.64  0.040 / 0.060
G31     178.9          31.0                9.1 +/-    2.13      15.5 +/-    2.13  0.170 / 0.200
G32     336.3          73.7                6.5 +/-    0.49       6.7 +/-    0.49  0.180 / 0.260