Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 10 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)
 10/01/2022   10:27:16   ( -72.64,-158.02) 10/01/2022   10:28:26  ( -72.50,-156.80)   43.50                70
 10/01/2022   11:17:53   (  72.18,  10.22) 10/01/2022   11:17:57  (  72.20,  10.29)    3.16                 4
 10/01/2022   12:08:36   ( -72.07, 177.75) 10/01/2022   12:07:27  ( -72.08, 177.71)    1.58                69
 10/04/2022   01:54:17   (  72.58, 150.39) 10/04/2022   01:55:27  (  72.47, 151.39)   35.42                70
 10/04/2022   02:44:54   ( -72.16, -41.47) 10/04/2022   02:45:00  ( -72.19, -41.49)    3.21                 6
 10/04/2022   03:35:39   (  72.10, 125.95) 10/04/2022   03:34:27  (  72.10, 125.99)    1.56                72
 10/06/2022   17:21:18   ( -72.61,  98.59) 10/06/2022   17:22:28  ( -72.49,  99.68)   38.46                70
 10/06/2022   18:11:56   (  72.20, -93.27) 10/06/2022   18:11:59  (  72.18, -93.24)    1.84                 3
 10/06/2022   19:02:39   ( -72.09,  74.25) 10/06/2022   19:01:29  ( -72.07,  74.19)    3.10                70
 10/09/2022   08:48:18   (  72.50,  47.08) 10/09/2022   08:49:29  (  72.42,  47.79)   25.35                71
 10/09/2022   09:38:57   ( -72.19,-144.98) 10/09/2022   09:39:01  ( -72.20,-144.98)    1.06                 4
 10/09/2022   10:29:41   (  72.08,  22.54) 10/09/2022   10:28:28  (  72.10,  22.49)    2.69                73
 10/12/2022   00:15:20   ( -72.55,  -4.74) 10/12/2022   00:16:31  ( -72.41,  -3.97)   29.42                71
 10/12/2022   01:05:59   (  72.18, 163.30) 10/12/2022   01:06:00  (  72.20, 163.29)    2.46                 1
 10/12/2022   01:56:43   ( -72.13, -29.28) 10/12/2022   01:55:30  ( -72.10, -29.27)    3.38                73
 10/14/2022   15:42:20   (  72.44, -56.26) 10/14/2022   15:43:31  (  72.35, -55.84)   17.55                71
 10/14/2022   16:33:00   ( -72.18, 111.57) 10/14/2022   16:33:02  ( -72.19, 111.51)    2.24                 2
 10/14/2022   17:23:42   (  71.97, -80.71) 10/14/2022   17:22:30  (  72.03, -81.13)   16.07                72