PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-09:42:40
G01     40.9           16.3                4.4 +/-    2.31      10.5 +/-    2.31  0.070 / 0.090
G06     173.7          37.6                7.7 +/-    1.91      11.7 +/-    1.91  0.070 / 0.110
G13     237.8          23.9                6.6 +/-    1.65      13.2 +/-    1.65  0.040 / 0.030
G15     271.9          12.8                3.1 +/-    1.78       8.2 +/-    1.78  0.040 / 0.030
G17     354.2          72.8                5.5 +/-    0.80       5.8 +/-    0.80  0.040 / 0.060
G19     274.6          70.0                5.3 +/-    0.95       5.6 +/-    0.95  0.040 / 0.060
G24     317.4          16.2                2.8 +/-    1.32       6.8 +/-    1.32  0.120 / 0.220
G28     60.2           53.3                5.8 +/-    0.91       7.1 +/-    0.91  0.230 / 0.230
G30     154.9          31.8                8.0 +/-    0.90      13.5 +/-    0.90  0.210 / 0.270