PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-22:58:10
G01     319.4          16.7                9.1 +/-    2.54      21.7 +/-    2.54  0.040 / 0.080
G08     257.7          13.9               13.6 +/-    2.11      34.7 +/-    2.11  0.040 / 0.090
G10     76.5           54.8                8.9 +/-    0.66      10.7 +/-    0.66  0.110 / 0.260
G11     303.9          23.1                9.0 +/-    1.71      18.4 +/-    1.71  0.110 / 0.250
G14     295.4          70.9               10.2 +/-    0.65      10.7 +/-    0.65  0.040 / 0.050
G18     100.7          29.5               10.8 +/-    0.57      19.1 +/-    0.57  0.040 / 0.050
G31     180.0          36.6               14.0 +/-    1.93      21.5 +/-    1.93  0.030 / 0.030
G32     356.9          69.8                9.1 +/-    0.57       9.6 +/-    0.57  0.030 / 0.030