PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/23-21:27:50
G01     316.2          25.1                6.6 +/-    3.22      12.9 +/-    3.22  0.160 / 0.250
G08     253.2          10.4                8.3 +/-    3.33      22.9 +/-    3.33  0.180 / 0.230
G10     89.6           47.6                7.4 +/-    0.36       9.7 +/-    0.36  0.080 / 0.200
G11     299.5          23.5                8.7 +/-    1.10      17.6 +/-    1.10  0.070 / 0.160
G14     304.4          70.0                1.2 +/-    0.45       1.2 +/-    0.45  0.110 / 0.390
G20     111.3          22.6                7.8 +/-    1.62      16.2 +/-    1.62  0.110 / 0.470
G22     303.8          13.2                7.7 +/-    2.88      19.9 +/-    2.88  0.050 / 0.060
G25     96.7           10.7               -1.3 +/-   35.18      -3.7 +/-   35.18  0.040 / 0.040
G31     173.1          49.3               10.0 +/-    0.68      12.7 +/-    0.68  0.150 / 0.550
G32     20.1           62.3                6.8 +/-    0.59       7.6 +/-    0.59  0.140 / 0.540