PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-09:42:50
G01     71.7           33.0                5.9 +/-    1.28       9.7 +/-    1.28  0.030 / 0.030
G07     136.9          30.7                6.9 +/-    0.94      12.0 +/-    0.94  0.040 / 0.030
G11     53.2           30.1                4.7 +/-    2.17       8.1 +/-    2.17  0.080 / 0.080
G13     274.9          37.9                8.1 +/-    1.13      12.2 +/-    1.13  0.090 / 0.110
G15     306.8          12.9                4.1 +/-    1.56      10.7 +/-    1.56  0.050 / 0.110
G17     232.8          70.6                9.2 +/-    0.66       9.7 +/-    0.66  0.070 / 0.090
G18     48.2           17.4                3.8 +/-    2.64       8.9 +/-    2.64  0.120 / 0.210
G19     223.3          37.3                9.6 +/-    2.17      14.5 +/-    2.17  0.110 / 0.160
G28     16.0           59.9                7.6 +/-    2.05       8.6 +/-    2.05  0.100 / 0.110
G30     134.9          64.4                7.4 +/-    0.76       8.1 +/-    0.76  0.140 / 0.140