Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 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)
 05/26/2023   22:16:26   (  73.15,-153.57) 05/26/2023   22:17:38  (  73.08,-153.30)   11.67                72
 05/26/2023   23:07:08   ( -72.99,  14.10) 05/26/2023   23:07:08  ( -72.96,  14.10)    3.22                 0
 05/26/2023   23:57:49   (  72.73,-178.03) 05/26/2023   23:56:37  (  72.77,-178.63)   20.26                72
 05/29/2023   13:43:30   ( -73.07, 154.88) 05/29/2023   13:44:42  ( -73.07, 154.92)    1.44                72
 05/29/2023   14:34:14   (  72.96, -37.58) 05/29/2023   14:34:09  (  72.98, -37.61)    1.99                 5
 05/29/2023   15:24:53   ( -72.65, 130.40) 05/29/2023   15:23:41  ( -72.76, 129.59)   29.43                72
 06/01/2023   05:10:36   (  73.05, 103.17) 06/01/2023   05:11:43  (  73.06, 103.15)    0.90                67
 06/01/2023   06:01:20   ( -72.99, -89.37) 06/01/2023   06:01:12  ( -73.00, -89.33)    1.70                 8
 06/01/2023   06:51:55   (  72.43,  79.12) 06/01/2023   06:50:46  (  72.53,  77.41)   58.14                69
 06/03/2023   20:37:41   ( -73.08,  51.38) 06/03/2023   20:38:45  ( -73.06,  51.39)    2.52                64
 06/03/2023   21:28:25   (  72.98,-141.09) 06/03/2023   21:28:12  (  72.96,-141.15)    2.88                13
 06/03/2023   22:18:58   ( -72.36,  27.53) 06/03/2023   22:17:50  ( -72.43,  25.46)   69.93                68
 06/06/2023   12:04:46   (  73.04,  -0.26) 06/06/2023   12:05:45  (  73.05,  -0.37)    3.84                59
 06/06/2023   12:55:31   ( -73.01, 167.10) 06/06/2023   12:55:14  ( -72.99, 167.15)    2.86                17