Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 5 26.  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)
 05/26/2023   22:16:26   (  73.16,-153.59) 05/26/2023   22:17:37  (  73.12,-153.21)   13.01                71
 05/26/2023   23:07:07   ( -72.95,  14.18) 05/26/2023   23:07:08  ( -72.95,  14.08)    3.32                 1
 05/26/2023   23:57:49   (  72.74,-178.06) 05/26/2023   23:56:36  (  72.81,-178.55)   18.10                73
 05/29/2023   13:43:30   ( -73.08, 154.85) 05/29/2023   13:44:42  ( -73.06, 154.91)    2.78                72
 05/29/2023   14:34:14   (  72.97, -37.60) 05/29/2023   14:34:09  (  72.97, -37.63)    0.71                 5
 05/29/2023   15:24:53   ( -72.66, 130.38) 05/29/2023   15:23:41  ( -72.75, 129.57)   28.35                72
 06/01/2023   05:10:36   (  73.06, 103.16) 06/01/2023   05:11:43  (  73.06, 103.16)    0.26                67
 06/01/2023   06:01:20   ( -73.00, -89.39) 06/01/2023   06:01:12  ( -73.00, -89.33)    1.89                 8
 06/01/2023   06:51:55   (  72.44,  79.10) 06/01/2023   06:50:46  (  72.54,  77.42)   57.36                69
 06/03/2023   20:37:42   ( -73.09,  51.37) 06/03/2023   20:38:46  ( -73.07,  51.42)    2.31                64
 06/03/2023   21:28:26   (  72.99,-141.10) 06/03/2023   21:28:13  (  72.98,-141.12)    1.05                13
 06/03/2023   22:18:59   ( -72.36,  27.51) 06/03/2023   22:17:51  ( -72.44,  25.48)   68.80                68
 06/06/2023   12:04:47   (  73.08,  -0.37) 06/06/2023   12:05:45  (  73.08,  -0.31)    2.03                58
 06/06/2023   12:55:30   ( -72.96, 167.21) 06/06/2023   12:55:15  ( -72.97, 167.10)    3.46                15
 06/06/2023   13:46:00   (  72.16, -23.81) 06/06/2023   13:44:55  (  72.18, -26.74)   99.75                65