Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 9 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)
 09/26/2022   03:33:12   ( -72.60, -54.46) 09/26/2022   03:34:23  ( -72.49, -53.31)   40.09                71
 09/26/2022   04:23:49   (  72.14, 113.77) 09/26/2022   04:23:55  (  72.13, 113.68)    3.21                 6
 09/26/2022   05:14:33   ( -72.07, -78.79) 09/26/2022   05:13:24  ( -72.06, -78.80)    1.11                69
 09/28/2022   19:00:13   (  72.58,-106.15) 09/28/2022   19:01:23  (  72.48,-105.07)   37.48                70
 09/28/2022   19:50:50   ( -72.15,  62.01) 09/28/2022   19:50:57  ( -72.16,  61.97)    1.49                 7
 09/28/2022   20:41:34   (  72.05,-130.48) 09/28/2022   20:40:24  (  72.06,-130.56)    2.70                70
 10/01/2022   10:27:16   ( -72.64,-158.01) 10/01/2022   10:28:26  ( -72.50,-156.80)   43.41                70
 10/01/2022   11:17:53   (  72.19,  10.21) 10/01/2022   11:17:57  (  72.19,  10.28)    2.28                 4
 10/01/2022   12:08:36   ( -72.07, 177.75) 10/01/2022   12:07:27  ( -72.08, 177.71)    1.67                69
 10/04/2022   01:54:17   (  72.58, 150.38) 10/04/2022   01:55:27  (  72.47, 151.39)   35.97                70
 10/04/2022   02:44:55   ( -72.21, -41.56) 10/04/2022   02:45:00  ( -72.20, -41.47)    3.28                 5
 10/04/2022   03:35:39   (  72.11, 125.95) 10/04/2022   03:34:27  (  72.10, 126.00)    2.15                72
 10/06/2022   17:21:19   ( -72.60,  98.60) 10/06/2022   17:22:30  ( -72.46,  99.62)   37.44                71
 10/06/2022   18:11:57   (  72.20, -93.27) 10/06/2022   18:12:00  (  72.20, -93.21)    2.11                 3
 10/06/2022   19:02:40   ( -72.08,  74.27) 10/06/2022   19:01:30  ( -72.09,  74.23)    1.77                70