Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 4 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)
 04/12/2023   01:16:47   ( -72.88, -18.69) 04/12/2023   01:17:10  ( -72.89, -18.61)    2.85                23
 04/12/2023   02:07:32   (  72.77, 148.85) 04/12/2023   02:06:37  (  72.80, 148.86)    3.50                55
 04/14/2023   15:53:22   ( -73.50, 120.85) 04/14/2023   15:54:30  ( -73.42, 123.07)   70.98                68
 04/14/2023   16:43:56   (  72.85, -70.38) 04/14/2023   16:44:06  (  72.85, -70.42)    1.41                10
 04/14/2023   17:34:39   ( -72.78,  97.08) 04/14/2023   17:33:35  ( -72.79,  97.08)    0.28                64
 04/17/2023   07:20:23   (  73.04,  70.15) 04/17/2023   07:21:34  (  72.99,  70.46)   11.76                71
 04/17/2023   08:11:04   ( -72.87,-122.17) 04/17/2023   08:11:04  ( -72.87,-122.14)    0.90                 0
 04/17/2023   09:01:45   (  72.56,  45.78) 04/17/2023   09:00:33  (  72.66,  45.11)   24.85                72
 04/19/2023   22:47:28   ( -72.92,  18.67) 04/19/2023   22:48:33  ( -72.92,  18.58)    3.00                65
 04/19/2023   23:38:14   (  72.87,-173.92) 04/19/2023   23:37:59  (  72.88,-173.86)    2.17                15
 04/20/2023   00:28:46   ( -72.24,  -5.30) 04/20/2023   00:27:38  ( -72.28,  -7.34)   69.22                68
 04/22/2023   14:14:38   (  72.93, -33.11) 04/22/2023   14:15:27  (  72.96, -33.09)    2.97                49
 04/22/2023   15:05:21   ( -72.85, 134.38) 04/22/2023   15:04:57  ( -72.84, 134.32)    1.94                24