Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 5 28.  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)
 05/29/2023   13:43:30   ( -73.11, 154.80) 05/29/2023   13:44:41  ( -73.09, 154.96)    5.59                71
 05/29/2023   14:34:14   (  73.00, -37.65) 05/29/2023   14:34:08  (  73.00, -37.57)    2.96                 6
 05/29/2023   15:24:53   ( -72.69, 130.32) 05/29/2023   15:23:41  ( -72.72, 129.52)   26.83                72
 06/01/2023   05:10:35   (  73.03, 103.22) 06/01/2023   05:11:43  (  73.04, 103.12)    3.39                68
 06/01/2023   06:01:19   ( -72.97, -89.33) 06/01/2023   06:01:12  ( -72.98, -89.37)    1.75                 7
 06/01/2023   06:51:55   (  72.46,  79.06) 06/01/2023   06:50:46  (  72.52,  77.38)   56.31                69
 06/03/2023   20:37:41   ( -73.06,  51.43) 06/03/2023   20:38:46  ( -73.06,  51.39)    1.18                65
 06/03/2023   21:28:25   (  72.96,-141.04) 06/03/2023   21:28:13  (  72.97,-141.15)    3.68                12
 06/03/2023   22:18:59   ( -72.39,  27.47) 06/03/2023   22:17:51  ( -72.43,  25.46)   67.75                68
 06/06/2023   12:04:47   (  73.05,  -0.30) 06/06/2023   12:05:46  (  73.08,  -0.31)    2.71                59
 06/06/2023   12:55:31   ( -72.98, 167.16) 06/06/2023   12:55:16  ( -72.96, 167.09)    3.20                15
 06/06/2023   13:46:01   (  72.18, -23.85) 06/06/2023   13:44:55  (  72.23, -26.65)   95.32                66
 06/09/2023   03:31:53   ( -73.09, -52.10) 06/09/2023   03:32:49  ( -73.06, -52.10)    2.78                56
 06/09/2023   04:22:37   (  72.99, 115.42) 06/09/2023   04:22:15  (  73.02, 115.45)    3.36                22