PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/21-20:42:30
G10     299.6          53.3               11.8 +/-    0.56      14.4 +/-    0.56  0.060 / 0.090
G15     46.1           27.8                7.4 +/-    1.52      13.5 +/-    1.52  0.060 / 0.090
G20     356.2          65.1               11.5 +/-    1.28      12.6 +/-    1.28  0.040 / 0.050
G21     95.0           74.6               12.1 +/-    0.67      12.5 +/-    0.67  0.040 / 0.060
G24     99.1           26.8               12.9 +/-    0.49      24.3 +/-    0.49  0.050 / 0.110
G27     300.7          34.4               11.4 +/-    1.07      18.2 +/-    1.07  0.070 / 0.090
G32     210.1          32.7               12.3 +/-    1.54      20.4 +/-    1.54  0.070 / 0.140