PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-08:28:10
G01     45.5           21.4                2.8 +/-    3.53       6.0 +/-    3.53  0.060 / 0.050
G06     175.5          29.6                4.6 +/-    2.04       8.1 +/-    2.04  0.060 / 0.080
G11     44.3           14.3                3.1 +/-    2.66       7.9 +/-    2.66  0.140 / 0.330
G13     244.7          28.8                8.0 +/-    1.86      14.3 +/-    1.86  0.110 / 0.200
G15     278.3          15.0                3.9 +/-    1.78       9.6 +/-    1.78  0.090 / 0.160
G17     331.2          77.4                6.0 +/-    0.43       6.2 +/-    0.43  0.110 / 0.150
G19     255.0          65.5                6.5 +/-    0.86       7.1 +/-    0.86  0.050 / 0.040
G28     47.7           56.3                3.3 +/-    0.62       3.9 +/-    0.62  0.050 / 0.050
G30     152.5          40.0                7.9 +/-    0.87      11.5 +/-    0.87  0.040 / 0.040