PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-23:58:00
G01     257.1          37.7                6.9 +/-    2.07      10.4 +/-    2.07  0.030 / 0.040
G03     316.4          37.8                5.7 +/-    0.85       8.6 +/-    0.85  0.030 / 0.040
G11     241.0          15.6                6.8 +/-    3.20      16.7 +/-    3.20  0.060 / 0.080
G14     55.7           43.2                5.2 +/-    1.37       7.2 +/-    1.37  0.060 / 0.110
G22     310.0          60.4                5.0 +/-    1.22       5.6 +/-    1.22  0.020 / 0.030
G23     282.3          15.2               -0.1 +/-    6.42      -0.3 +/-    6.42  0.030 / 0.030
G25     42.8           12.2                5.7 +/-    2.14      15.0 +/-    2.14  0.180 / 0.190
G26     144.4          32.3                8.8 +/-    1.13      14.7 +/-    1.13  0.130 / 0.230
G31     42.3           67.6                5.4 +/-    0.48       5.8 +/-    0.48  0.050 / 0.100
G32     72.1           27.7                4.7 +/-    0.80       8.6 +/-    0.80  0.050 / 0.080