PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-03:13:00
G01     297.7          39.4                6.8 +/-    6.60      10.1 +/-    6.60  0.040 / 0.040
G03     309.4          11.8                1.4 +/-   21.77       3.8 +/-   21.77  0.040 / 0.040
G10     114.2          32.0                6.6 +/-    1.11      11.2 +/-    1.11  0.050 / 0.090
G11     273.0          26.5                7.7 +/-    0.82      14.6 +/-    0.82  0.080 / 0.090
G14     10.8           63.4                6.7 +/-    0.38       7.4 +/-    0.38  0.070 / 0.170
G18     261.7          49.8                7.7 +/-    6.22       9.7 +/-    6.22  0.080 / 0.160
G22     312.5          31.9                7.5 +/-    1.62      12.6 +/-    1.62  0.070 / 0.070
G25     74.8           18.2                6.2 +/-    1.48      14.4 +/-    1.48  0.050 / 0.080
G31     146.7          74.3                7.9 +/-    0.78       8.2 +/-    0.78  0.040 / 0.040
G32     44.1           47.0                4.7 +/-    0.50       6.2 +/-    0.50  0.030 / 0.050