Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 6 7.  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)
 06/09/2023   03:32:13   ( -73.09, -52.19) 06/09/2023   03:32:57  ( -73.07, -52.13)    2.91                44
 06/09/2023   04:22:57   (  72.97, 115.36) 06/09/2023   04:22:24  (  72.98, 115.35)    0.97                33
 06/11/2023   18:59:24   (  73.08,-103.94) 06/11/2023   19:00:00  (  73.06,-103.89)    2.86                36
 06/11/2023   19:50:07   ( -72.97,  63.62) 06/11/2023   19:49:29  ( -73.00,  63.62)    3.56                38
 06/14/2023   10:26:34   ( -73.08,-155.69) 06/14/2023   10:27:05  ( -73.06,-155.65)    2.49                31
 06/14/2023   11:17:18   (  72.97,  11.85) 06/14/2023   11:16:32  (  72.97,  11.81)    1.42                46
 06/17/2023   01:53:43   (  73.05, 152.63) 06/17/2023   01:54:06  (  73.06, 152.60)    2.30                23
 06/17/2023   02:44:27   ( -72.98, -39.91) 06/17/2023   02:43:35  ( -73.01, -39.89)    3.05                52
 06/19/2023   16:30:24   (  73.87, -68.35) 06/19/2023   16:31:29  (  73.77, -65.33)   94.27                65
 06/19/2023   17:20:53   ( -73.06, 100.85) 06/19/2023   17:21:10  ( -73.08, 100.86)    2.44                17
 06/19/2023   18:11:38   (  73.00, -91.71) 06/19/2023   18:10:37  (  72.98, -91.68)    2.13                61