PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/01-02:28:10
G08     317.9          13.7                7.5 +/-    0.99      19.2 +/-    0.99  0.030 / 0.040
G10     307.9          54.6                9.2 +/-    1.14      11.0 +/-    1.14  0.030 / 0.050
G14     212.4          20.6               14.3 +/-    2.58      30.9 +/-    2.58  0.080 / 0.130
G15     45.7           23.9                5.6 +/-    2.49      11.3 +/-    2.49  0.070 / 0.130
G18     11.4           64.7                8.4 +/-    0.57       9.1 +/-    0.57  0.050 / 0.050
G20     77.3           11.9                8.2 +/-    2.46      22.0 +/-    2.46  0.040 / 0.050
G21     115.7          68.6               11.5 +/-    1.15      12.3 +/-    1.15  0.100 / 0.400
G24     90.5           29.0                9.0 +/-    1.08      16.1 +/-    1.08  0.110 / 0.270
G27     289.6          37.4               10.2 +/-    1.76      15.6 +/-    1.76  0.060 / 0.080
G32     214.7          38.7               14.0 +/-    1.18      20.7 +/-    1.18  0.060 / 0.080