PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-01:57:50
G01     308.6          31.9                6.0 +/-    2.03      10.1 +/-    2.03  0.040 / 0.050
G10     103.5          42.4                7.6 +/-    0.85      10.6 +/-    0.85  0.050 / 0.040
G11     282.7          29.2                7.4 +/-    1.55      13.3 +/-    1.55  0.080 / 0.120
G14     356.1          67.3                6.2 +/-    0.41       6.6 +/-    0.41  0.120 / 0.130
G18     115.8          16.1                7.2 +/-    1.49      17.5 +/-    1.49  0.080 / 0.100
G22     308.6          23.6                6.9 +/-    0.92      13.9 +/-    0.92  0.070 / 0.110
G25     81.4           15.6                7.4 +/-    2.05      18.1 +/-    2.05  0.070 / 0.170
G31     172.6          60.7                9.2 +/-    0.69      10.4 +/-    0.69  0.090 / 0.180
G32     30.0           56.3                5.5 +/-    0.85       6.4 +/-    0.85  0.040 / 0.040