Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 5 27.  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   ( -73.10, 154.82) 05/29/2023   13:44:41  ( -73.10, 154.98)    5.33                71
 05/29/2023   14:34:14   (  72.99, -37.64) 05/29/2023   14:34:09  (  72.96, -37.65)    3.14                 5
 05/29/2023   15:24:53   ( -72.68, 130.34) 05/29/2023   15:23:41  ( -72.73, 129.54)   27.20                72
 06/01/2023   05:10:36   (  73.08, 103.12) 06/01/2023   05:11:43  (  73.05, 103.14)    2.39                67
 06/01/2023   06:01:20   ( -73.01, -89.42) 06/01/2023   06:01:12  ( -72.99, -89.35)    3.26                 8
 06/01/2023   06:51:55   (  72.45,  79.07) 06/01/2023   06:50:46  (  72.53,  77.40)   56.44                69
 06/03/2023   20:37:41   ( -73.05,  51.44) 06/03/2023   20:38:46  ( -73.07,  51.41)    2.27                65
 06/03/2023   21:28:26   (  73.00,-141.13) 06/03/2023   21:28:13  (  72.98,-141.12)    2.55                13
 06/03/2023   22:18:59   ( -72.38,  27.48) 06/03/2023   22:17:51  ( -72.44,  25.48)   67.69                68
 06/06/2023   12:04:48   (  73.10,  -0.40) 06/06/2023   12:05:46  (  73.09,  -0.29)    3.65                58
 06/06/2023   12:55:31   ( -72.98, 167.18) 06/06/2023   12:55:16  ( -72.98, 167.12)    1.93                15
 06/06/2023   13:46:01   (  72.17, -23.84) 06/06/2023   13:44:56  (  72.19, -26.72)   98.22                65
 06/09/2023   03:31:52   ( -73.08, -52.09) 06/09/2023   03:32:48  ( -73.07, -52.08)    1.01                56
 06/09/2023   04:22:36   (  72.98, 115.43) 06/09/2023   04:22:15  (  72.98, 115.37)    2.07                21