PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/23-05:27:50
G01     319.1          17.1                6.2 +/-    2.01      14.7 +/-    2.01  0.020 / 0.020
G08     256.8          13.8               -5.7 +/-   16.49     -14.7 +/-   16.49  0.020 / 0.020
G10     76.6           54.9                4.5 +/-    0.70       5.4 +/-    0.70  0.150 / 0.220
G11     302.2          24.7                4.1 +/-    1.41       8.0 +/-    1.41  0.120 / 0.250
G14     298.0          71.3                4.4 +/-    1.22       4.6 +/-    1.22  0.030 / 0.030
G18     99.7           31.8              -49.7 +/-   51.92     -84.0 +/-   51.92  0.030 / 0.030
G22     299.9          10.8                0.4 +/-    3.67       1.2 +/-    3.67  0.200 / 0.250
G31     176.1          40.8               23.8 +/-   13.23      34.2 +/-   13.23  0.040 / 0.040
G32     3.0            68.7                5.1 +/-    0.56       5.4 +/-    0.56  0.040 / 0.040