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                2.2 +/-    0.52       4.7 +/-    0.52  0.040 / 0.070
G06     175.5          29.6                7.1 +/-    2.10      12.6 +/-    2.10  0.060 / 0.070
G11     44.3           14.3                2.0 +/-    2.61       5.2 +/-    2.61  0.170 / 0.490
G13     244.7          28.8                6.9 +/-    1.43      12.3 +/-    1.43  0.130 / 0.300
G15     278.3          15.0                5.6 +/-    1.28      13.8 +/-    1.28  0.100 / 0.180
G17     331.2          77.4                5.3 +/-    0.57       5.4 +/-    0.57  0.070 / 0.150
G19     255.0          65.5                6.5 +/-    0.77       7.1 +/-    0.77  0.040 / 0.060
G28     47.7           56.3                2.9 +/-    0.64       3.4 +/-    0.64  0.040 / 0.050
G30     152.5          40.0                8.2 +/-    1.19      12.0 +/-    1.19  0.110 / 0.250