Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 2 3.  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)
 02/05/2023   01:29:08   ( -73.39, -23.69) 02/05/2023   01:30:14  ( -73.31, -20.88)   90.16                66
 02/05/2023   02:19:38   (  72.57, 145.40) 02/05/2023   02:19:53  (  72.59, 145.35)    2.09                15
 02/05/2023   03:10:22   ( -72.51, -47.15) 02/05/2023   03:09:22  ( -72.52, -47.14)    1.67                60
 02/07/2023   16:56:14   (  72.88, -74.34) 02/07/2023   16:57:25  (  72.76, -73.72)   24.52                71
 02/07/2023   17:46:54   ( -72.61,  93.54) 02/07/2023   17:46:56  ( -72.59,  93.59)    2.98                 2
 02/07/2023   18:37:36   (  72.39, -98.71) 02/07/2023   18:36:24  (  72.44, -99.04)   12.39                72
 02/10/2023   08:23:25   ( -72.67,-125.68) 02/10/2023   08:24:29  ( -72.69,-125.62)    2.99                64
 02/10/2023   09:14:10   (  72.61,  41.76) 02/10/2023   09:13:56  (  72.60,  41.85)    3.31                14
 02/10/2023   10:04:43   ( -71.98,-149.68) 02/10/2023   10:03:34  ( -72.06,-151.50)   63.13                69
 02/12/2023   23:50:41   (  72.68,-177.48) 02/12/2023   23:51:29  (  72.68,-177.39)    2.86                48
 02/13/2023   00:41:24   ( -72.56,  -9.92) 02/13/2023   00:40:59  ( -72.57,  -9.97)    1.80                25
 02/15/2023   15:17:54   ( -72.64, 130.83) 02/15/2023   15:18:31  ( -72.63, 130.75)    2.61                37
 02/15/2023   16:08:39   (  72.58, -61.73) 02/15/2023   16:07:57  (  72.58, -61.69)    1.67                42