Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 9 5.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/06/2023   23:13:21   ( -73.33,  13.29) 09/06/2023   23:13:51  ( -73.32,  13.29)    0.94                30
 09/07/2023   00:04:06   (  73.25,-179.22) 09/07/2023   00:03:18  (  73.24,-179.24)    1.44                48
 09/09/2023   14:40:27   (  73.34, -38.48) 09/09/2023   14:40:49  (  73.36, -38.39)    3.08                22
 09/09/2023   15:31:10   ( -73.25, 129.05) 09/09/2023   15:30:19  ( -73.23, 128.99)    2.49                51
 09/12/2023   06:07:32   ( -73.34, -90.21) 09/12/2023   06:07:51  ( -73.33, -90.19)    1.52                19
 09/12/2023   06:58:16   (  73.23,  77.37) 09/12/2023   06:57:18  (  73.24,  77.27)    3.56                58
 09/14/2023   20:44:06   ( -74.03,  49.09) 09/14/2023   20:45:13  ( -73.93,  51.70)   81.16                67
 09/14/2023   21:34:38   (  73.34,-141.92) 09/14/2023   21:34:50  (  73.31,-141.97)    2.82                12
 09/14/2023   22:25:22   ( -73.28,  25.52) 09/14/2023   22:24:19  ( -73.25,  25.53)    3.22                63
 09/17/2023   12:11:07   (  73.80,  -2.06) 09/17/2023   12:12:16  (  73.68,  -0.58)   47.68                69
 09/17/2023   13:01:43   ( -73.34, 166.34) 09/17/2023   13:01:50  ( -73.35, 166.36)    1.99                 7