PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-17:58:00
G08     292.3          23.3                8.4 +/-    1.58      17.2 +/-    1.58  0.090 / 0.110
G10     14.3           62.6               11.0 +/-    1.23      12.2 +/-    1.23  0.080 / 0.110
G14     229.4          42.2               13.2 +/-    2.28      18.5 +/-    2.28  0.060 / 0.100
G20     69.9           49.3                9.2 +/-    1.25      11.7 +/-    1.25  0.060 / 0.130
G21     147.3          39.2               11.2 +/-    0.99      16.5 +/-    0.99  0.090 / 0.260
G24     56.3           26.0                8.2 +/-    1.76      15.7 +/-    1.76  0.090 / 0.180
G27     253.1          31.7               10.9 +/-    2.89      18.5 +/-    2.89  0.050 / 0.080
G32     248.6          70.4                7.5 +/-    0.98       7.9 +/-    0.98  0.050 / 0.090