PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-12:12:50
G08     271.6          17.5                5.9 +/-    1.60      13.8 +/-    1.60  0.040 / 0.040
G10     61.2           58.6                4.2 +/-    0.86       4.8 +/-    0.86  0.040 / 0.050
G11     313.0          15.4                1.1 +/-    1.74       2.7 +/-    1.74  0.070 / 0.110
G14     263.8          63.8                5.7 +/-    0.73       6.3 +/-    0.73  0.070 / 0.130
G18     312.7          30.9                4.0 +/-    1.30       6.9 +/-    1.30  0.160 / 0.440
G21     154.4          14.3                5.1 +/-    3.19      12.8 +/-    3.19  0.210 / 0.300
G24     39.7           10.1                2.5 +/-    2.87       7.1 +/-    2.87  0.190 / 0.300
G27     231.0          15.5                6.3 +/-    2.33      15.6 +/-    2.33  0.200 / 0.220
G31     177.2          31.9                7.5 +/-    1.26      12.6 +/-    1.26  0.030 / 0.030
G32     344.7          73.7                5.2 +/-    0.36       5.4 +/-    0.36  0.030 / 0.040