Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 4 12.  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)
 04/14/2023   16:43:56   (  72.85, -70.37) 04/14/2023   16:44:13  (  72.87, -70.43)    2.83                17
 04/14/2023   17:34:39   ( -72.78,  97.08) 04/14/2023   17:33:42  ( -72.80,  97.08)    2.05                57
 04/17/2023   07:20:32   (  73.48,  69.14) 04/17/2023   07:21:40  (  73.33,  71.10)   64.35                68
 04/17/2023   08:11:04   ( -72.86,-122.16) 04/17/2023   08:11:17  ( -72.85,-122.23)    2.81                13
 04/17/2023   09:01:50   (  72.81,  45.27) 04/17/2023   09:00:43  (  72.81,  45.34)    2.39                67
 04/19/2023   22:47:36   ( -73.30,  17.81) 04/19/2023   22:48:46  ( -73.21,  19.08)   41.88                70
 04/19/2023   23:38:14   (  72.85,-173.89) 04/19/2023   23:38:18  (  72.86,-173.98)    2.95                 4
 04/20/2023   00:28:57   ( -72.78,  -6.42) 04/20/2023   00:27:47  ( -72.80,  -6.46)    2.32                70
 04/22/2023   14:14:40   (  73.01, -33.29) 04/22/2023   14:15:51  (  73.00, -33.10)    6.26                71
 04/22/2023   15:05:22   ( -72.88, 134.31) 04/22/2023   15:05:21  ( -72.89, 134.32)    1.83                 1
 04/22/2023   15:56:03   (  72.58, -57.76) 04/22/2023   15:54:51  (  72.64, -58.53)   26.16                72
 04/25/2023   05:41:47   ( -72.99, -84.99) 04/25/2023   05:42:55  ( -72.99, -84.89)    3.01                68
 04/25/2023   06:32:32   (  72.90,  82.51) 04/25/2023   06:32:22  (  72.89,  82.55)    1.70                10