Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 7 1.  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)
 07/02/2023   21:45:56   ( -73.16,  34.56) 07/02/2023   21:47:03  ( -73.13,  34.52)    3.31                67
 07/02/2023   22:36:41   (  73.07,-157.94) 07/02/2023   22:36:30  (  73.05,-158.00)    3.33                11
 07/02/2023   23:27:15   ( -72.53,  10.53) 07/02/2023   23:26:06  ( -72.61,   8.78)   58.80                69
 07/05/2023   13:13:06   (  73.14, -17.15) 07/05/2023   13:14:06  (  73.14, -17.23)    2.37                60
 07/05/2023   14:03:49   ( -73.05, 150.35) 07/05/2023   14:03:35  ( -73.07, 150.28)    3.21                14
 07/05/2023   14:54:20   (  72.26, -40.67) 07/05/2023   14:53:15  (  72.29, -43.56)   97.86                65
 07/08/2023   04:40:15   ( -73.18, -68.98) 07/08/2023   04:41:11  ( -73.15, -68.97)    3.48                56
 07/08/2023   05:31:00   (  73.09,  98.52) 07/08/2023   05:30:37  (  73.11,  98.60)    3.35                23
 07/10/2023   20:07:25   (  73.17,-120.72) 07/10/2023   20:08:13  (  73.17,-120.69)    1.10                48
 07/10/2023   20:58:08   ( -73.09,  46.78) 07/10/2023   20:57:42  ( -73.11,  46.82)    2.60                26
 07/13/2023   11:34:32   ( -73.17,-172.46) 07/13/2023   11:35:17  ( -73.15,-172.49)    2.84                45
 07/13/2023   12:25:17   (  73.08,  -4.96) 07/13/2023   12:24:43  (  73.10,  -4.93)    2.50                34