Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 5 12.  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)
 05/13/2023   17:51:37   (  72.98, -87.17) 05/13/2023   17:51:54  (  72.97, -87.25)    2.62                17
 05/13/2023   18:42:21   ( -72.93,  80.24) 05/13/2023   18:41:23  ( -72.90,  80.25)    3.06                58
 05/16/2023   08:28:11   (  73.62,  52.31) 05/16/2023   08:29:18  (  73.53,  54.48)   69.08                67
 05/16/2023   09:18:43   ( -72.97,-138.90) 05/16/2023   09:18:56  ( -72.99,-138.99)    3.35                13
 05/16/2023   10:09:28   (  72.90,  28.55) 05/16/2023   10:08:23  (  72.89,  28.48)    2.67                65
 05/18/2023   23:55:13   ( -73.42,   1.04) 05/18/2023   23:56:23  ( -73.35,   2.35)   42.32                70
 05/19/2023   00:45:51   (  73.01, 169.27) 05/19/2023   00:45:55  (  73.00, 169.28)    1.17                 4
 05/19/2023   01:36:35   ( -72.95, -23.29) 05/19/2023   01:35:24  ( -72.94, -23.21)    3.11                71
 05/21/2023   15:22:14   (  73.17, -50.14) 05/21/2023   15:23:25  (  73.12, -49.87)   10.49                71
 05/21/2023   16:12:56   ( -73.01, 117.53) 05/21/2023   16:12:55  ( -73.01, 117.54)    0.36                 1
 05/21/2023   17:03:36   (  72.70, -74.50) 05/21/2023   17:02:24  (  72.81, -75.21)   26.23                72
 05/24/2023   06:49:18   ( -73.08,-101.67) 05/24/2023   06:50:26  ( -73.11,-101.66)    3.24                68
 05/24/2023   07:40:03   (  73.03,  65.75) 05/24/2023   07:39:53  (  73.01,  65.79)    2.44                10