Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 4 4.  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)
 04/06/2023   18:22:27   ( -72.85,  84.88) 04/06/2023   18:23:14  ( -72.84,  84.80)    3.21                47
 04/06/2023   19:13:13   (  72.79,-107.68) 04/06/2023   19:12:40  (  72.80,-107.63)    2.15                33
 04/09/2023   09:49:38   (  72.85,  33.12) 04/09/2023   09:50:11  (  72.85,  33.07)    1.77                33
 04/09/2023   10:40:21   ( -72.79,-159.43) 04/09/2023   10:39:40  ( -72.78,-159.43)    1.31                41
 04/12/2023   01:16:46   ( -72.87, -18.66) 04/12/2023   01:17:10  ( -72.85, -18.69)    2.55                24
 04/12/2023   02:07:32   (  72.81, 148.77) 04/12/2023   02:06:36  (  72.80, 148.87)    3.36                56
 04/14/2023   15:53:22   ( -73.50, 120.86) 04/14/2023   15:54:30  ( -73.40, 123.04)   69.98                68
 04/14/2023   16:43:56   (  72.85, -70.38) 04/14/2023   16:44:05  (  72.88, -70.36)    3.36                 9
 04/14/2023   17:34:39   ( -72.78,  97.09) 04/14/2023   17:33:35  ( -72.77,  97.05)    2.05                64
 04/17/2023   07:20:22   (  73.01,  70.22) 04/17/2023   07:21:33  (  72.98,  70.45)    8.05                71
 04/17/2023   08:11:04   ( -72.88,-122.19) 04/17/2023   08:11:03  ( -72.86,-122.14)    2.71                 1