PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-22:12:50
G10     296.6          52.3                9.9 +/-    1.78      12.1 +/-    1.78  0.040 / 0.040
G15     46.5           30.1                8.9 +/-    1.37      15.6 +/-    1.37  0.040 / 0.040
G20     350.1          65.3               10.3 +/-    0.36      11.2 +/-    0.36  0.070 / 0.100
G21     88.0           75.6               11.3 +/-    0.87      11.7 +/-    0.87  0.090 / 0.120
G24     100.8          26.0               11.5 +/-    0.88      22.0 +/-    0.88  0.110 / 0.140
G27     302.8          33.5                8.7 +/-    2.00      14.3 +/-    2.00  0.070 / 0.110
G32     209.5          30.3               14.1 +/-    2.58      24.6 +/-    2.58  0.050 / 0.090