Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 10 12.  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)
 10/13/2023   22:41:49   (  74.03,-159.90) 10/13/2023   22:42:57  (  73.92,-157.75)   67.16                68
 10/13/2023   23:32:22   ( -73.42,   8.87) 10/13/2023   23:32:34  ( -73.43,   8.83)    1.40                12
 10/14/2023   00:23:07   (  73.37, 176.30) 10/14/2023   00:22:01  (  73.35, 176.30)    2.72                66
 10/16/2023   14:08:52   ( -74.07, 148.27) 10/16/2023   14:09:59  ( -73.97, 150.62)   72.88                67
 10/16/2023   14:59:25   (  73.43, -42.87) 10/16/2023   14:59:35  (  73.42, -42.94)    2.79                10
 10/16/2023   15:50:09   ( -73.37, 124.59) 10/16/2023   15:49:04  ( -73.35, 124.56)    2.29                65
 10/19/2023   05:35:51   (  73.95,  96.85) 10/19/2023   05:37:00  (  73.86,  98.63)   55.76                69
 10/19/2023   06:26:26   ( -73.45, -94.62) 10/19/2023   06:26:36  ( -73.44, -94.66)    1.99                10
 10/19/2023   07:17:11   (  73.40,  72.81) 10/19/2023   07:16:02  (  73.40,  72.90)    2.90                69
 10/21/2023   21:02:53   ( -73.98,  45.06) 10/21/2023   21:04:02  ( -73.84,  46.81)   56.33                69
 10/21/2023   21:53:28   (  73.44,-146.32) 10/21/2023   21:53:35  (  73.43,-146.42)    3.30                 7
 10/21/2023   22:44:12   ( -73.38,  21.14) 10/21/2023   22:43:04  ( -73.37,  21.09)    1.82                68
 10/24/2023   12:29:52   (  73.85,  -6.31) 10/24/2023   12:31:02  (  73.73,  -5.15)   38.06                70
 10/24/2023   13:20:30   ( -73.49, 161.86) 10/24/2023   13:20:35  ( -73.47, 161.91)    2.88                 5