PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/31-22:58:00
G01     315.0          25.2                9.1 +/-    2.65      17.8 +/-    2.65  0.130 / 0.350
G10     92.3           48.6                9.7 +/-    0.49      12.4 +/-    0.49  0.120 / 0.330
G11     293.8          27.1                7.5 +/-    1.85      13.9 +/-    1.85  0.160 / 0.340
G14     329.6          70.8                9.9 +/-    0.99      10.4 +/-    0.99  0.150 / 0.440
G18     109.4          22.0               10.9 +/-    1.66      22.9 +/-    1.66  0.030 / 0.060
G22     304.7          16.2                9.0 +/-    3.87      21.8 +/-    3.87  0.030 / 0.060
G25     91.7           12.5               10.8 +/-    2.51      28.6 +/-    2.51  0.130 / 0.210
G31     178.0          48.6               12.3 +/-    1.09      15.8 +/-    1.09  0.120 / 0.190
G32     18.1           62.5                9.4 +/-    0.64      10.4 +/-    0.64  0.040 / 0.050