PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-22:28:00
G01     316.4          23.5                6.7 +/-    1.47      13.6 +/-    1.47  0.050 / 0.040
G10     90.0           48.7                8.9 +/-    1.56      11.4 +/-    1.56  0.050 / 0.040
G11     295.4          26.4                5.6 +/-    2.24      10.6 +/-    2.24  0.110 / 0.360
G14     318.9          71.1                7.4 +/-    0.60       7.8 +/-    0.60  0.120 / 0.330
G18     295.6          46.3                6.1 +/-    9.78       8.0 +/-    9.78  0.090 / 0.150
G20     111.0          24.1                9.5 +/-    2.42      19.0 +/-    2.42  0.110 / 0.200
G22     304.0          14.5                7.0 +/-    3.69      17.6 +/-    3.69  0.120 / 0.150
G25     91.7           11.2                2.7 +/-   30.95       7.3 +/-   30.95  0.150 / 0.240
G31     175.0          48.9               10.9 +/-    0.98      13.9 +/-    0.98  0.170 / 0.280
G32     20.0           62.2                6.3 +/-    0.92       7.0 +/-    0.92  0.170 / 0.260