PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-08:57:50
G01     38.3           12.1                1.1 +/-    4.87       3.0 +/-    4.87  0.070 / 0.180
G02     199.3          11.2               -0.6 +/-    9.09      -1.7 +/-    9.09  0.100 / 0.180
G06     172.3          43.5                7.9 +/-    0.86      10.9 +/-    0.86  0.120 / 0.280
G13     233.2          20.2                6.9 +/-    3.17      15.1 +/-    3.17  0.140 / 0.220
G15     266.3          10.9                5.2 +/-    3.26      14.1 +/-    3.26  0.050 / 0.050
G17     7.3            68.2                4.8 +/-    0.37       5.1 +/-    0.37  0.050 / 0.060
G19     293.5          72.1                5.3 +/-    0.40       5.5 +/-    0.40  0.040 / 0.070
G24     315.5          20.7                3.1 +/-    3.56       6.8 +/-    3.56  0.040 / 0.070
G28     68.2           51.1                4.7 +/-    1.24       5.9 +/-    1.24  0.210 / 0.290
G30     156.4          26.7                5.9 +/-    1.58      11.1 +/-    1.58  0.280 / 0.380