Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 7 17.  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)
 07/18/2025   06:37:32   ( -76.00, -91.15) 07/18/2025   06:37:50  ( -75.99, -91.24)    2.84                18
 07/18/2025   07:28:16   (  75.94,  76.36) 07/18/2025   07:27:16  (  75.97,  76.34)    2.93                60
 07/20/2025   22:03:38   (  76.47,-144.31) 07/20/2025   22:04:45  (  76.36,-141.81)   66.38                67
 07/20/2025   22:54:12   ( -76.01,  24.70) 07/20/2025   22:54:20  ( -76.00,  24.67)    1.84                 8
 07/20/2025   23:44:56   (  75.96,-167.78) 07/20/2025   23:43:46  (  75.98,-167.75)    2.48                70
 07/23/2025   14:20:09   (  76.09, -26.97) 07/23/2025   14:21:21  (  76.07, -26.87)    3.31                72
 07/23/2025   15:10:52   ( -76.03, 140.55) 07/23/2025   15:10:50  ( -76.00, 140.55)    3.71                 2
 07/23/2025   16:01:30   (  75.70, -51.00) 07/23/2025   16:00:20  (  75.78, -52.48)   41.48                70
 07/26/2025   06:36:48   (  76.06,  89.03) 07/26/2025   06:37:51  (  76.05,  88.96)    2.26                63
 07/26/2025   07:27:31   ( -76.01,-103.47) 07/26/2025   07:27:19  ( -76.04,-103.46)    2.73                12
 07/28/2025   22:53:27   (  76.09,-155.16) 07/28/2025   22:54:19  (  76.07,-155.09)    2.68                52
 07/28/2025   23:44:10   ( -76.04,  12.34) 07/28/2025   23:43:48  ( -76.01,  12.34)    3.17                22