Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 2 10.  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)
 02/10/2023   08:23:25   ( -72.66,-125.65) 02/10/2023   08:24:29  ( -72.66,-125.69)    1.26                64
 02/10/2023   09:14:09   (  72.59,  41.81) 02/10/2023   09:13:55  (  72.57,  41.79)    2.05                14
 02/10/2023   10:04:42   ( -71.96,-149.64) 02/10/2023   10:03:33  ( -72.02,-151.57)   66.39                69
 02/12/2023   23:50:40   (  72.65,-177.43) 02/12/2023   23:51:27  (  72.64,-177.47)    2.50                47
 02/13/2023   00:41:24   ( -72.59,  -9.99) 02/13/2023   00:40:56  ( -72.57,  -9.96)    2.75                28
 02/15/2023   15:17:55   ( -72.67, 130.76) 02/15/2023   15:18:27  ( -72.65, 130.80)    2.76                32
 02/15/2023   16:08:39   (  72.55, -61.68) 02/15/2023   16:07:54  (  72.55, -61.74)    2.02                45
 02/18/2023   05:54:40   ( -73.45, -90.05) 02/18/2023   05:55:46  ( -73.31, -87.28)   89.64                66
 02/18/2023   06:45:10   (  72.64,  79.05) 02/18/2023   06:45:24  (  72.64,  79.03)    0.68                14
 02/18/2023   07:35:54   ( -72.57,-113.51) 02/18/2023   07:34:53  ( -72.57,-113.45)    1.75                61
 02/20/2023   21:21:41   (  72.73,-140.23) 02/20/2023   21:22:53  (  72.73,-140.17)    1.90                72
 02/20/2023   22:12:24   ( -72.62,  27.31) 02/20/2023   22:12:23  ( -72.61,  27.24)    2.61                 1
 02/20/2023   23:03:04   (  72.29,-164.72) 02/20/2023   23:01:53  (  72.35,-165.60)   30.50                71
 02/23/2023   12:48:54   ( -72.72, 168.01) 02/23/2023   12:49:50  ( -72.71, 168.05)    1.65                56
 02/23/2023   13:39:38   (  72.60, -24.43) 02/23/2023   13:39:17  (  72.61, -24.50)    2.68                21