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                5.8 +/-    1.03       9.9 +/-    1.03  0.030 / 0.030
G07     137.0          30.3                7.1 +/-    1.03      12.4 +/-    1.03  0.030 / 0.030
G11     54.6           33.5                6.0 +/-    1.48       9.8 +/-    1.48  0.180 / 0.340
G13     272.9          38.7                7.0 +/-    1.12      10.3 +/-    1.12  0.120 / 0.350
G15     301.2          15.9                1.8 +/-    1.24       4.3 +/-    1.24  0.040 / 0.040
G17     231.2          68.7                7.6 +/-    0.58       8.1 +/-    0.58  0.040 / 0.050
G19     223.1          44.4                7.6 +/-    1.80      10.4 +/-    1.80  0.100 / 0.090
G28     3.3            61.3                6.9 +/-    0.38       7.8 +/-    0.38  0.060 / 0.090
G30     136.1          65.1                8.5 +/-    0.71       9.3 +/-    0.71  0.120 / 0.080