Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 9 17.  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)
 09/17/2023   13:01:42   ( -73.33, 166.35) 09/17/2023   13:02:06  ( -73.35, 166.28)    3.03                24
 09/17/2023   13:52:27   (  73.26, -26.19) 09/17/2023   13:51:33  (  73.27, -26.24)    1.85                54
 09/20/2023   04:28:48   (  73.34, 114.59) 09/20/2023   04:29:08  (  73.33, 114.49)    3.36                20
 09/20/2023   05:19:32   ( -73.29, -77.97) 09/20/2023   05:18:37  ( -73.26, -78.01)    2.87                55
 09/22/2023   19:55:53   ( -73.37,  62.81) 09/22/2023   19:56:11  ( -73.36,  62.78)    1.59                18
 09/22/2023   20:46:38   (  73.31,-129.75) 09/22/2023   20:45:37  (  73.32,-129.65)    3.50                61
 09/25/2023   10:32:28   ( -74.14,-158.11) 09/25/2023   10:33:33  ( -74.04,-155.12)   91.83                65
 09/25/2023   11:22:57   (  73.36,  11.10) 09/25/2023   11:23:10  (  73.38,  11.08)    2.83                13
 09/25/2023   12:13:41   ( -73.29, 178.57) 09/25/2023   12:12:39  ( -73.32, 178.58)    3.05                62
 09/28/2023   01:59:28   (  73.95, 150.64) 09/28/2023   02:00:36  (  73.83, 152.66)   63.72                68
 09/28/2023   02:50:02   ( -73.39, -40.70) 09/28/2023   02:50:12  ( -73.40, -40.63)    2.80                10
 09/28/2023   03:40:46   (  73.29, 126.83) 09/28/2023   03:39:39  (  73.31, 126.82)    2.01                67
 09/30/2023   17:26:30   ( -73.84,  99.19) 09/30/2023   17:27:40  ( -73.72, 100.66)   47.46                70
 09/30/2023   18:17:06   (  73.35, -92.34) 09/30/2023   18:17:12  (  73.37, -92.45)    3.65                 6