Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 6 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)
 06/01/2023   05:10:42   (  73.08, 103.10) 06/01/2023   05:11:43  (  73.07, 103.18)    2.72                61
 06/01/2023   06:01:25   ( -72.96, -89.34) 06/01/2023   06:01:13  ( -72.95, -89.43)    3.31                12
 06/01/2023   06:51:57   (  72.24,  79.47) 06/01/2023   06:50:51  (  72.28,  76.95)   85.49                66
 06/03/2023   20:37:51   ( -73.05,  51.40) 06/03/2023   20:38:45  ( -73.07,  51.43)    2.80                54
 06/03/2023   21:28:36   (  72.99,-141.16) 06/03/2023   21:28:12  (  72.99,-141.10)    1.93                24
 06/06/2023   12:05:02   (  73.04,  -0.33) 06/06/2023   12:05:46  (  73.04,  -0.39)    2.16                44
 06/06/2023   12:55:46   ( -72.97, 167.14) 06/06/2023   12:55:15  ( -72.97, 167.11)    0.97                31
 06/09/2023   03:32:13   ( -73.06, -52.15) 06/09/2023   03:32:48  ( -73.06, -52.11)    1.56                35
 06/09/2023   04:22:57   (  72.96, 115.39) 06/09/2023   04:22:15  (  72.96, 115.35)    1.36                42
 06/11/2023   18:59:24   (  73.07,-103.91) 06/11/2023   18:59:47  (  73.08,-103.80)    3.57                23
 06/11/2023   19:50:07   ( -72.94,  63.67) 06/11/2023   19:49:17  ( -72.96,  63.60)    3.31                50
 06/14/2023   09:36:02   (  73.77,  35.39) 06/14/2023   09:37:08  (  73.70,  38.10)   84.85                66
 06/14/2023   10:26:33   ( -73.05,-155.63) 06/14/2023   10:26:48  ( -73.06,-155.59)    1.72                15
 06/14/2023   11:17:17   (  72.95,  11.90) 06/14/2023   11:16:15  (  72.96,  11.86)    1.98                62