Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 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)
 06/05/2025   11:52:15   ( -75.86,-170.47) 06/05/2025   11:52:42  ( -75.84,-170.48)    2.25                27
 06/05/2025   12:42:59   (  75.80,  -2.96) 06/05/2025   12:42:09  (  75.78,  -3.02)    3.36                50
 06/08/2025   04:08:56   ( -75.85, -54.53) 06/08/2025   04:09:14  ( -75.85, -54.56)    1.08                18
 06/08/2025   04:59:40   (  75.80, 112.96) 06/08/2025   04:58:41  (  75.79, 112.88)    2.47                59
 06/10/2025   19:35:04   (  76.36,-107.80) 06/10/2025   19:36:10  (  76.26,-105.06)   72.89                66
 06/10/2025   20:25:37   ( -75.84,  61.39) 06/10/2025   20:25:46  ( -75.85,  61.29)    2.66                 9
 06/10/2025   21:16:21   (  75.79,-131.14) 06/10/2025   21:15:12  (  75.83,-131.13)    3.47                69
 06/13/2025   11:51:35   (  75.96,   9.56) 06/13/2025   11:52:47  (  75.94,   9.81)    7.14                72
 06/13/2025   12:42:18   ( -75.89, 177.13) 06/13/2025   12:42:16  ( -75.87, 177.24)    3.46                 2
 06/13/2025   13:32:57   (  75.62, -14.64) 06/13/2025   13:31:46  (  75.65, -15.78)   31.55                71
 06/16/2025   04:08:15   (  75.93, 125.58) 06/16/2025   04:09:18  (  75.94, 125.69)    3.44                63
 06/16/2025   04:58:58   ( -75.85, -66.84) 06/16/2025   04:58:47  ( -75.88, -66.86)    3.37                11
 06/18/2025   20:24:56   (  75.94,-118.58) 06/18/2025   20:25:49  (  75.92,-118.48)    3.35                53
 06/18/2025   21:15:39   ( -75.86,  49.02) 06/18/2025   21:15:18  ( -75.86,  48.97)    1.31                21