PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-23:58:00
G08     315.3          15.8                9.1 +/-    2.14      22.1 +/-    2.14  0.070 / 0.060
G10     314.3          56.3                7.3 +/-    1.44       8.6 +/-    1.44  0.070 / 0.040
G14     213.9          24.1               11.6 +/-    5.06      23.1 +/-    5.06  0.070 / 0.090
G15     45.6           19.0                8.6 +/-    2.01      19.5 +/-    2.01  0.080 / 0.090
G18     21.8           63.1                8.3 +/-    0.82       9.2 +/-    0.82  0.070 / 0.070
G20     79.9           10.2               11.0 +/-    5.02      30.7 +/-    5.02  0.070 / 0.080
G21     123.1          64.2               11.4 +/-    0.82      12.5 +/-    0.82  0.040 / 0.040
G24     86.1           29.9               10.9 +/-    1.16      19.0 +/-    1.16  0.040 / 0.040
G27     284.6          38.0                7.8 +/-    2.41      11.7 +/-    2.41  0.150 / 0.280
G32     217.1          41.1               10.5 +/-    1.01      15.0 +/-    1.01  0.130 / 0.260