PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-07:27:50
G01     68.7           31.8                5.5 +/-    0.77       9.2 +/-    0.77  0.030 / 0.030
G07     137.0          30.3                7.7 +/-    0.88      13.4 +/-    0.88  0.030 / 0.030
G11     54.6           33.5                4.8 +/-    0.75       7.8 +/-    0.75  0.070 / 0.100
G13     272.9          38.7                8.2 +/-    0.67      12.2 +/-    0.67  0.050 / 0.110
G15     301.2          15.9                0.9 +/-    2.65       2.3 +/-    2.65  0.060 / 0.110
G17     231.2          68.7                6.5 +/-    0.99       7.0 +/-    0.99  0.070 / 0.120
G19     223.1          44.4                6.2 +/-    0.85       8.4 +/-    0.85  0.060 / 0.110
G28     3.3            61.3                5.0 +/-    0.82       5.6 +/-    0.82  0.060 / 0.100
G30     136.1          65.1                8.1 +/-    0.56       8.8 +/-    0.56  0.040 / 0.060