Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 2 9.  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   ( -72.69,-125.72) 02/10/2023   08:24:28  ( -72.67,-125.65)    2.76                63
 02/10/2023   09:14:09   (  72.57,  41.84) 02/10/2023   09:13:55  (  72.58,  41.82)    1.80                14
 02/10/2023   10:04:42   ( -71.95,-149.61) 02/10/2023   10:03:34  ( -71.98,-151.63)   69.75                68
 02/12/2023   23:50:40   (  72.64,-177.39) 02/12/2023   23:51:27  (  72.66,-177.43)    2.95                47
 02/13/2023   00:41:24   ( -72.57,  -9.94) 02/13/2023   00:40:56  ( -72.59,  -9.92)    2.39                28
 02/15/2023   15:17:55   ( -72.65, 130.81) 02/15/2023   15:18:28  ( -72.63, 130.76)    2.38                33
 02/15/2023   16:08:40   (  72.58, -61.74) 02/15/2023   16:07:54  (  72.59, -61.67)    2.53                46
 02/18/2023   05:54:40   ( -73.43, -89.99) 02/18/2023   05:55:46  ( -73.37, -87.17)   90.09                66
 02/18/2023   06:45:10   (  72.66,  79.00) 02/18/2023   06:45:24  (  72.64,  79.03)    2.74                14
 02/18/2023   07:35:53   ( -72.55,-113.45) 02/18/2023   07:34:53  ( -72.57,-113.45)    3.06                60
 02/20/2023   21:21:42   (  72.80,-140.38) 02/20/2023   21:22:53  (  72.75,-140.13)    9.91                71
 02/20/2023   22:12:24   ( -72.64,  27.27) 02/20/2023   22:12:23  ( -72.64,  27.29)    0.50                 1