Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 5 21.  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)
 05/22/2022   06:44:55   (  71.87,  77.79) 05/22/2022   06:45:26  (  71.86,  77.72)    2.89                31
 05/22/2022   07:35:39   ( -71.81,-114.78) 05/22/2022   07:34:55  ( -71.79,-114.76)    2.29                44
 05/24/2022   22:12:00   ( -71.87,  26.05) 05/24/2022   22:12:29  ( -71.87,  25.98)    2.37                29
 05/24/2022   23:02:44   (  71.76,-166.44) 05/24/2022   23:01:56  (  71.78,-166.53)    3.72                48
 05/27/2022   13:39:05   (  71.88, -25.71) 05/27/2022   13:39:28  (  71.88, -25.74)    1.18                23
 05/27/2022   14:29:49   ( -71.81, 141.72) 05/27/2022   14:28:57  ( -71.82, 141.79)    2.60                52
 05/30/2022   04:15:42   (  72.76, 113.47) 05/30/2022   04:16:48  (  72.66, 116.28)   93.67                66
 05/30/2022   05:06:10   ( -71.88, -77.46) 05/30/2022   05:06:30  ( -71.90, -77.46)    3.04                20
 05/30/2022   05:56:55   (  71.82,  89.95) 05/30/2022   05:55:57  (  71.80,  90.02)    3.18                58
 06/01/2022   19:42:45   ( -72.66,  61.92) 06/01/2022   19:43:52  ( -72.55,  64.32)   80.60                67
 06/01/2022   20:33:16   (  71.90,-129.25) 06/01/2022   20:33:29  (  71.91,-129.18)    3.01                13
 06/01/2022   21:23:59   ( -71.78,  38.28) 06/01/2022   21:22:59  ( -71.80,  38.26)    2.85                60