PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/23-21:28:10
G01     315.9          25.5                8.0 +/-    1.66      15.4 +/-    1.66  0.130 / 0.270
G10     90.2           47.3                7.7 +/-    0.87      10.0 +/-    0.87  0.180 / 0.320
G11     299.1          23.6                7.6 +/-    1.78      15.4 +/-    1.78  0.170 / 0.300
G14     305.8          70.1                0.8 +/-    0.63       0.8 +/-    0.63  0.200 / 0.310
G20     111.6          22.3                8.4 +/-    1.56      17.4 +/-    1.56  0.130 / 0.190
G22     304.0          13.5                8.7 +/-    3.54      22.4 +/-    3.54  0.100 / 0.200
G25     96.3           10.9                9.4 +/-    2.04      25.7 +/-    2.04  0.040 / 0.050
G31     172.9          49.8                9.9 +/-    0.62      12.5 +/-    0.62  0.040 / 0.040
G32     20.7           62.0                7.4 +/-    0.78       8.2 +/-    0.78  0.030 / 0.050