Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 6 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)
 06/06/2023   12:05:03   (  73.07,  -0.41) 06/06/2023   12:05:52  (  73.06,  -0.38)    2.40                49
 06/06/2023   12:55:46   ( -72.96, 167.15) 06/06/2023   12:55:21  ( -72.99, 167.12)    3.26                25
 06/09/2023   03:32:13   ( -73.06, -52.13) 06/09/2023   03:32:58  ( -73.04, -52.17)    2.07                45
 06/09/2023   04:22:58   (  73.00, 115.30) 06/09/2023   04:22:24  (  73.01, 115.41)    3.46                34
 06/11/2023   18:59:23   (  73.06,-103.89) 06/11/2023   19:00:00  (  73.04,-103.93)    1.99                37
 06/11/2023   19:50:07   ( -72.99,  63.57) 06/11/2023   19:49:29  ( -72.98,  63.58)    0.88                38
 06/14/2023   10:26:33   ( -73.05,-155.63) 06/14/2023   10:27:05  ( -73.05,-155.68)    1.57                32
 06/14/2023   11:17:18   (  73.00,  11.80) 06/14/2023   11:16:31  (  73.01,  11.89)    3.28                47
 06/17/2023   01:53:44   (  73.06, 152.59) 06/17/2023   01:54:07  (  73.06, 152.58)    0.49                23
 06/17/2023   02:44:28   ( -72.99, -39.95) 06/17/2023   02:43:36  ( -73.00, -39.90)    1.94                52