Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 7 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)
 07/12/2025   22:04:13   ( -76.00,  37.05) 07/12/2025   22:04:49  ( -76.02,  37.09)    2.52                36
 07/12/2025   22:54:57   (  75.94,-155.45) 07/12/2025   22:54:16  (  75.95,-155.47)    0.86                41
 07/15/2025   14:20:53   ( -76.00, 152.94) 07/15/2025   14:21:20  ( -76.01, 152.96)    1.47                27
 07/15/2025   15:11:37   (  75.95, -39.56) 07/15/2025   15:10:47  (  75.94, -39.61)    1.52                50
 07/18/2025   06:37:33   ( -76.01, -91.18) 07/18/2025   06:37:51  ( -76.00, -91.20)    0.71                18
 07/18/2025   07:28:17   (  75.96,  76.31) 07/18/2025   07:27:17  (  75.98,  76.37)    2.96                60
 07/20/2025   22:03:38   (  76.48,-144.35) 07/20/2025   22:04:45  (  76.39,-141.71)   69.64                67
 07/20/2025   22:54:12   ( -76.02,  24.68) 07/20/2025   22:54:20  ( -76.04,  24.78)    3.24                 8
 07/20/2025   23:44:56   (  75.97,-167.82) 07/20/2025   23:43:47  (  75.96,-167.81)    1.04                69
 07/23/2025   14:20:10   (  76.14, -27.16) 07/23/2025   14:21:22  (  76.08, -26.85)   11.14                72
 07/23/2025   15:10:52   ( -76.04, 140.53) 07/23/2025   15:10:51  ( -76.01, 140.59)    3.13                 1