Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 8 2.  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)
 08/04/2022   06:32:16   ( -72.46, -99.46) 08/04/2022   06:33:27  ( -72.35, -98.35)   39.47                71
 08/04/2022   07:22:55   (  72.04,  68.67) 08/04/2022   07:22:58  (  72.04,  68.75)    2.60                 3
 08/04/2022   08:13:37   ( -71.94,-123.81) 08/04/2022   08:12:28  ( -71.93,-123.82)    1.16                69
 08/06/2022   21:59:20   (  72.41,-151.10) 08/06/2022   22:00:31  (  72.27,-150.24)   32.60                71
 08/06/2022   22:49:57   ( -72.04,  16.93) 08/06/2022   22:50:03  ( -72.05,  17.00)    2.44                 6
 08/06/2022   23:40:42   (  71.93,-175.55) 08/06/2022   23:39:30  (  71.96,-175.52)    3.13                72
 08/09/2022   13:26:24   ( -72.50, 156.97) 08/09/2022   13:27:34  ( -72.39, 158.20)   43.35                70
 08/09/2022   14:17:02   (  72.05, -34.82) 08/09/2022   14:17:06  (  72.02, -34.81)    2.76                 4
 08/09/2022   15:07:44   ( -71.93, 132.72) 08/09/2022   15:06:36  ( -71.91, 132.63)    3.81                68
 08/12/2022   04:53:26   (  72.42, 105.40) 08/12/2022   04:54:37  (  72.29, 106.27)   32.67                71
 08/12/2022   05:44:03   ( -72.04, -86.54) 08/12/2022   05:44:10  ( -72.02, -86.57)    2.06                 7
 08/12/2022   06:34:48   (  71.94,  80.95) 08/12/2022   06:33:37  (  71.92,  80.89)    2.86                71
 08/14/2022   20:20:30   ( -72.51,  53.48) 08/14/2022   20:21:40  ( -72.40,  54.70)   42.54                70
 08/14/2022   21:11:07   (  72.01,-138.23) 08/14/2022   21:11:12  (  72.03,-138.32)    3.65                 5
 08/14/2022   22:01:51   ( -71.98,  29.14) 08/14/2022   22:00:41  ( -71.98,  29.22)    2.93                70