PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/13-00:28:00
G01     311.5          29.3                8.8 +/-    1.51      15.7 +/-    1.51  0.040 / 0.060
G10     99.2           45.0                7.8 +/-    0.76      10.6 +/-    0.76  0.040 / 0.040
G11     287.3          28.6                8.1 +/-    1.52      14.7 +/-    1.52  0.090 / 0.280
G14     346.3          69.0                6.7 +/-    0.62       7.1 +/-    0.62  0.110 / 0.200
G18     113.3          18.4               10.1 +/-    1.61      23.2 +/-    1.61  0.030 / 0.040
G22     307.1          20.4                9.8 +/-    1.78      21.3 +/-    1.78  0.040 / 0.040
G25     85.8           14.5                8.1 +/-    1.18      20.3 +/-    1.18  0.120 / 0.140
G31     175.8          55.5               10.8 +/-    1.64      12.8 +/-    1.64  0.090 / 0.160
G32     24.9           59.1                6.7 +/-    0.41       7.7 +/-    0.41  0.060 / 0.160