Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 5 24.  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)
 05/24/2022   22:12:00   ( -71.89,  26.02) 05/24/2022   22:12:29  ( -71.87,  25.98)    2.42                29
 05/24/2022   23:02:44   (  71.78,-166.47) 05/24/2022   23:01:56  (  71.78,-166.53)    2.26                48
 05/27/2022   13:39:05   (  71.90, -25.76) 05/27/2022   13:39:28  (  71.89, -25.72)    1.31                23
 05/27/2022   14:29:48   ( -71.78, 141.77) 05/27/2022   14:28:58  ( -71.77, 141.71)    2.53                50
 05/30/2022   05:06:09   ( -71.86, -77.43) 05/30/2022   05:06:31  ( -71.87, -77.52)    2.97                22
 05/30/2022   05:56:54   (  71.81,  89.98) 05/30/2022   05:55:58  (  71.78,  89.96)    3.53                56
 06/01/2022   19:42:45   ( -72.71,  61.82) 06/01/2022   19:43:51  ( -72.64,  64.49)   88.55                66
 06/01/2022   20:33:15   (  71.89,-129.24) 06/01/2022   20:33:30  (  71.90,-129.21)    1.54                15
 06/01/2022   21:23:58   ( -71.78,  38.29) 06/01/2022   21:23:00  ( -71.79,  38.23)    2.26                58
 06/04/2022   11:09:46   (  72.50,  10.52) 06/04/2022   11:10:55  (  72.39,  12.27)   60.12                69
 06/04/2022   12:00:19   ( -71.87, 179.05) 06/04/2022   12:00:32  ( -71.90, 179.03)    2.82                13
 06/04/2022   12:51:04   (  71.82, -13.53) 06/04/2022   12:49:59  (  71.80, -13.50)    2.50                65
 06/07/2022   02:36:48   ( -72.38, -40.99) 06/07/2022   02:37:58  ( -72.31, -39.62)   47.00                70
 06/07/2022   03:27:24   (  71.87, 127.32) 06/07/2022   03:27:31  (  71.88, 127.27)    2.51                 7