PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-21:57:40
G08     310.0          18.3               12.1 +/-    1.24      27.9 +/-    1.24  0.060 / 0.080
G10     340.4          61.2               10.8 +/-    0.85      12.2 +/-    0.85  0.070 / 0.080
G14     219.0          30.7               15.1 +/-    1.41      26.1 +/-    1.41  0.040 / 0.060
G20     43.9           58.7               11.2 +/-    0.41      12.8 +/-    0.41  0.050 / 0.050
G21     136.8          55.7               13.4 +/-    0.85      15.9 +/-    0.85  0.070 / 0.200
G24     72.6           30.4               12.1 +/-    0.80      21.0 +/-    0.80  0.080 / 0.200
G27     272.1          37.4               12.7 +/-    1.45      19.3 +/-    1.45  0.120 / 0.240
G32     224.7          55.1               13.4 +/-    0.63      15.9 +/-    0.63  0.120 / 0.160