Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 9 11.  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)
 09/12/2023   06:07:32   ( -73.35, -90.21) 09/12/2023   06:07:59  ( -73.37, -90.15)    3.34                27
 09/12/2023   06:58:17   (  73.27,  77.26) 09/12/2023   06:57:26  (  73.29,  77.32)    2.70                51
 09/14/2023   21:34:38   (  73.33,-141.92) 09/14/2023   21:35:02  (  73.36,-141.93)    3.15                24
 09/14/2023   22:25:22   ( -73.28,  25.51) 09/14/2023   22:24:31  ( -73.29,  25.57)    2.31                51
 09/17/2023   13:01:43   ( -73.34, 166.33) 09/17/2023   13:02:07  ( -73.34, 166.27)    1.84                24
 09/17/2023   13:52:28   (  73.28, -26.22) 09/17/2023   13:51:34  (  73.26, -26.27)    3.23                54
 09/20/2023   04:28:48   (  73.36, 114.56) 09/20/2023   04:29:07  (  73.38, 114.60)    3.13                19
 09/20/2023   05:19:32   ( -73.29, -77.98) 09/20/2023   05:18:37  ( -73.27, -78.00)    2.86                55
 09/22/2023   19:55:53   ( -73.37,  62.80) 09/22/2023   19:56:11  ( -73.37,  62.82)    0.57                18
 09/22/2023   20:46:37   (  73.27,-129.66) 09/22/2023   20:45:38  (  73.28,-129.73)    2.51                59