Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 5 27.  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)
 05/27/2022   13:39:05   (  71.87, -25.70) 05/27/2022   13:39:29  (  71.87, -25.77)    2.18                24
 05/27/2022   14:29:49   ( -71.81, 141.73) 05/27/2022   14:28:58  ( -71.80, 141.75)    1.31                51
 05/30/2022   05:06:10   ( -71.89, -77.48) 05/30/2022   05:06:31  ( -71.90, -77.46)    1.85                21
 05/30/2022   05:56:55   (  71.83,  89.94) 05/30/2022   05:55:58  (  71.81,  90.02)    3.46                57
 06/01/2022   19:42:45   ( -72.73,  61.78) 06/01/2022   19:43:51  ( -72.63,  64.46)   89.61                66
 06/01/2022   20:33:15   (  71.91,-129.28) 06/01/2022   20:33:30  (  71.89,-129.22)    2.96                15
 06/01/2022   21:23:58   ( -71.80,  38.25) 06/01/2022   21:23:00  ( -71.78,  38.21)    2.90                58
 06/04/2022   11:09:46   (  72.52,  10.48) 06/04/2022   11:10:54  (  72.44,  12.37)   63.97                68
 06/04/2022   12:00:19   ( -71.89, 179.02) 06/04/2022   12:00:32  ( -71.90, 179.04)    1.02                13
 06/04/2022   12:51:03   (  71.78, -13.47) 06/04/2022   12:49:59  (  71.80, -13.49)    2.15                64
 06/07/2022   02:36:49   ( -72.45, -41.13) 06/07/2022   02:37:58  ( -72.33, -39.59)   53.68                69
 06/07/2022   03:27:24   (  71.88, 127.29) 06/07/2022   03:27:31  (  71.91, 127.30)    2.55                 7
 06/07/2022   04:18:08   ( -71.82, -65.29) 06/07/2022   04:17:01  ( -71.80, -65.25)    3.34                67
 06/09/2022   18:03:50   (  72.25, -92.47) 06/09/2022   18:05:01  (  72.10, -91.74)   29.62                71
 06/09/2022   18:54:28   ( -71.88,  75.55) 06/09/2022   18:54:33  ( -71.89,  75.52)    1.33                 5
 06/09/2022   19:45:12   (  71.77,-116.93) 06/09/2022   19:44:00  (  71.78,-117.02)    3.44                72