Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 9 6.  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   23:13:20   ( -73.32,  13.31) 09/06/2023   23:13:50  ( -73.33,  13.30)    0.73                30
 09/07/2023   00:04:05   (  73.24,-179.20) 09/07/2023   00:03:17  (  73.25,-179.23)    1.06                48
 09/09/2023   14:40:27   (  73.34, -38.46) 09/09/2023   14:40:50  (  73.31, -38.48)    2.69                23
 09/09/2023   15:31:10   ( -73.24, 129.07) 09/09/2023   15:30:19  ( -73.24, 129.01)    1.83                51
 09/12/2023   06:07:32   ( -73.34, -90.19) 09/12/2023   06:07:51  ( -73.34, -90.18)    0.64                19
 09/12/2023   06:58:17   (  73.27,  77.27) 09/12/2023   06:57:18  (  73.25,  77.29)    1.90                59
 09/14/2023   20:44:06   ( -74.03,  49.11) 09/14/2023   20:45:13  ( -73.94,  51.72)   80.89                67
 09/14/2023   21:34:38   (  73.33,-141.90) 09/14/2023   21:34:50  (  73.32,-141.95)    1.48                12
 09/14/2023   22:25:22   ( -73.27,  25.54) 09/14/2023   22:24:19  ( -73.26,  25.55)    1.17                63
 09/17/2023   12:11:06   (  73.78,  -2.03) 09/17/2023   12:12:15  (  73.69,  -0.56)   47.08                69
 09/17/2023   13:01:42   ( -73.33, 166.36) 09/17/2023   13:01:50  ( -73.31, 166.28)    3.05                 8