PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/18-00:58:10
G01     287.3          40.7                4.3 +/-    1.30       6.1 +/-    1.30  0.040 / 0.080
G03     312.5          17.5                6.4 +/-    1.66      14.9 +/-    1.66  0.040 / 0.100
G10     121.6          27.5                6.2 +/-    1.41      11.5 +/-    1.41  0.050 / 0.140
G11     261.3          25.9                8.3 +/-    1.85      15.8 +/-    1.85  0.050 / 0.140
G14     29.7           56.4                3.6 +/-    0.56       4.3 +/-    0.56  0.040 / 0.080
G22     314.0          39.7                4.0 +/-    2.14       5.9 +/-    2.14  0.050 / 0.080
G25     62.3           18.2                4.2 +/-    0.76       9.6 +/-    0.76  0.030 / 0.020
G26     159.1          13.0                8.7 +/-    2.74      22.8 +/-    2.74  0.030 / 0.030
G31     140.1          80.1                6.2 +/-    0.85       6.3 +/-    0.85  0.050 / 0.050
G32     51.1           42.8                3.5 +/-    0.79       4.9 +/-    0.79  0.040 / 0.070