PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-09:12:40
G01     46.6           22.6                3.6 +/-    2.64       7.4 +/-    2.64  0.030 / 0.050
G06     179.3          27.0                6.7 +/-    1.28      12.5 +/-    1.28  0.040 / 0.050
G11     43.7           10.7                3.0 +/-    1.56       8.2 +/-    1.56  0.160 / 0.290
G13     247.6          27.8                4.9 +/-    2.07       9.0 +/-    2.07  0.200 / 0.300
G15     279.3          15.1                1.2 +/-    2.86       2.9 +/-    2.86  0.160 / 0.250
G17     343.3          76.1                6.4 +/-    0.37       6.5 +/-    0.37  0.080 / 0.150
G19     257.1          65.1                7.3 +/-    0.62       7.9 +/-    0.62  0.020 / 0.020
G24     319.1          10.5              -15.7 +/-   15.68     -43.2 +/-   15.68  0.030 / 0.020
G28     60.1           50.5                4.9 +/-    0.60       6.1 +/-    0.60  0.090 / 0.110
G30     151.3          36.4                9.2 +/-    1.00      14.2 +/-    1.00  0.120 / 0.110