Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 4 5.  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,  84.89) 04/06/2023   18:23:14  ( -72.84,  84.81)    2.78                47
 04/06/2023   19:13:13   (  72.78,-107.67) 04/06/2023   19:12:40  (  72.81,-107.62)    3.20                33
 04/09/2023   09:49:38   (  72.85,  33.13) 04/09/2023   09:50:11  (  72.86,  33.09)    1.81                33
 04/09/2023   10:40:21   ( -72.79,-159.42) 04/09/2023   10:39:40  ( -72.79,-159.41)    0.57                41
 04/12/2023   01:16:46   ( -72.86, -18.64) 04/12/2023   01:17:10  ( -72.86, -18.66)    0.43                24
 04/12/2023   02:07:31   (  72.75, 148.89) 04/12/2023   02:06:37  (  72.77, 148.80)    3.42                54
 04/14/2023   15:53:23   ( -73.54, 120.76) 04/14/2023   15:54:30  ( -73.43, 123.09)   74.88                67
 04/14/2023   16:43:56   (  72.84, -70.36) 04/14/2023   16:44:06  (  72.86, -70.41)    2.04                10
 04/14/2023   17:34:39   ( -72.77,  97.10) 04/14/2023   17:33:35  ( -72.79,  97.10)    1.95                64
 04/17/2023   07:20:21   (  73.00,  70.24) 04/17/2023   07:21:33  (  72.96,  70.42)    6.93                72
 04/17/2023   08:11:03   ( -72.87,-122.17) 04/17/2023   08:11:03  ( -72.85,-122.17)    2.85                 0