PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-09:12:50
G01     70.1           32.9                4.9 +/-    1.07       8.1 +/-    1.07  0.050 / 0.040
G07     137.7          29.4                6.1 +/-    1.59      10.9 +/-    1.59  0.040 / 0.040
G11     52.3           29.2                4.0 +/-    1.21       7.1 +/-    1.21  0.080 / 0.130
G13     273.3          37.8                6.7 +/-    1.17      10.2 +/-    1.17  0.050 / 0.130
G15     305.4          13.4                2.8 +/-    1.94       7.3 +/-    1.94  0.070 / 0.080
G17     235.5          71.9                6.8 +/-    0.46       7.1 +/-    0.46  0.060 / 0.070
G18     47.1           16.6                2.5 +/-    1.03       6.0 +/-    1.03  0.130 / 0.270
G19     224.2          38.7                6.9 +/-    2.09      10.3 +/-    2.09  0.120 / 0.280
G28     18.1           59.6                5.3 +/-    0.47       6.0 +/-    0.47  0.080 / 0.110
G30     136.3          63.1                7.3 +/-    1.49       8.1 +/-    1.49  0.060 / 0.110