PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-23:27:50
G01     272.3          41.4                7.5 +/-    2.64      10.6 +/-    2.64  0.040 / 0.060
G03     315.5          27.5                5.1 +/-    2.58       9.3 +/-    2.58  0.040 / 0.070
G10     129.0          17.3                9.5 +/-    1.72      22.3 +/-    1.72  0.070 / 0.060
G11     250.1          20.4                7.4 +/-    2.35      16.2 +/-    2.35  0.060 / 0.070
G14     42.1           50.7                7.1 +/-    1.09       8.9 +/-    1.09  0.090 / 0.180
G18     232.6          39.4                7.5 +/-    1.23      11.0 +/-    1.23  0.080 / 0.200
G22     314.2          49.7                7.2 +/-    0.80       9.1 +/-    0.80  0.190 / 0.360
G25     50.2           14.8                4.9 +/-    4.01      12.2 +/-    4.01  0.150 / 0.430
G31     60.6           76.2                7.5 +/-    0.29       7.7 +/-    0.29  0.060 / 0.060
G32     63.3           32.9                6.5 +/-    1.30      10.7 +/-    1.30  0.060 / 0.060