Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 9 25.  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)
 09/26/2022   03:33:12   ( -72.64, -54.55) 09/26/2022   03:34:22  ( -72.49, -53.30)   44.62                70
 09/26/2022   04:23:48   (  72.13, 113.79) 09/26/2022   04:23:54  (  72.14, 113.70)    3.08                 6
 09/26/2022   05:14:32   ( -72.07, -78.78) 09/26/2022   05:13:23  ( -72.07, -78.78)    0.58                69
 09/28/2022   19:00:13   (  72.57,-106.13) 09/28/2022   19:01:24  (  72.44,-105.15)   35.82                71
 09/28/2022   19:50:50   ( -72.15,  62.02) 09/28/2022   19:50:57  ( -72.16,  61.98)    2.23                 7
 09/28/2022   20:41:35   (  72.10,-130.57) 09/28/2022   20:40:24  (  72.07,-130.54)    3.33                71
 10/01/2022   10:27:16   ( -72.64,-158.00) 10/01/2022   10:28:26  ( -72.50,-156.79)   42.95                70
 10/01/2022   11:17:53   (  72.18,  10.22) 10/01/2022   11:17:57  (  72.19,  10.28)    2.42                 4
 10/01/2022   12:08:36   ( -72.06, 177.76) 10/01/2022   12:07:27  ( -72.08, 177.72)    2.34                69
 10/04/2022   01:54:17   (  72.58, 150.39) 10/04/2022   01:55:27  (  72.47, 151.39)   35.51                70
 10/04/2022   02:44:55   ( -72.20, -41.55) 10/04/2022   02:45:00  ( -72.20, -41.47)    2.91                 5
 10/04/2022   03:35:39   (  72.10, 125.96) 10/04/2022   03:34:27  (  72.09, 125.99)    1.68                72
 10/06/2022   17:21:18   ( -72.60,  98.61) 10/06/2022   17:22:29  ( -72.46,  99.61)   37.23                71
 10/06/2022   18:11:56   (  72.20, -93.27) 10/06/2022   18:11:59  (  72.19, -93.22)    1.58                 3
 10/06/2022   19:02:39   ( -72.08,  74.27) 10/06/2022   19:01:29  ( -72.09,  74.22)    1.84                70