PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-23:27:50
G01     247.2          33.3                8.1 +/-    1.84      13.4 +/-    1.84  0.040 / 0.040
G03     315.1          46.3                7.2 +/-    0.75       9.5 +/-    0.75  0.040 / 0.040
G11     234.4          10.9                7.3 +/-   12.93      20.0 +/-   12.93  0.090 / 0.110
G14     64.4           38.2                6.2 +/-    0.73       9.2 +/-    0.73  0.080 / 0.120
G16     165.2          18.8               10.5 +/-    1.24      23.8 +/-    1.24  0.040 / 0.040
G22     300.3          68.2                8.8 +/-    0.39       9.4 +/-    0.39  0.040 / 0.040
G23     288.8          20.5                7.6 +/-    2.02      16.5 +/-    2.02  0.090 / 0.200
G26     136.5          39.9               10.9 +/-    0.99      15.8 +/-    0.99  0.090 / 0.190
G31     39.5           58.0                7.9 +/-    0.61       9.2 +/-    0.61  0.090 / 0.150
G32     79.7           22.0                7.1 +/-    1.21      14.9 +/-    1.21  0.070 / 0.140