PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-19:28:00
G08     252.6          10.7                9.9 +/-    2.15      27.3 +/-    2.15  0.030 / 0.030
G10     88.9           47.9                9.1 +/-    1.83      11.7 +/-    1.83  0.040 / 0.030
G11     300.9          22.7                8.1 +/-    4.82      16.8 +/-    4.82  0.050 / 0.060
G14     299.3          69.3                8.0 +/-    1.18       8.5 +/-    1.18  0.060 / 0.060
G20     111.1          22.3               10.2 +/-    1.18      21.3 +/-    1.18  0.200 / 0.540
G22     303.6          13.0                7.1 +/-    4.59      18.4 +/-    4.59  0.210 / 0.430
G25     96.8           10.4               -5.8 +/-   41.76     -16.0 +/-   41.76  0.050 / 0.100
G31     174.1          48.0                9.9 +/-    2.28      12.8 +/-    2.28  0.050 / 0.100
G32     20.0           62.5                9.0 +/-    1.22      10.0 +/-    1.22  0.140 / 0.460