Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 12 13.  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)
 12/13/2023   18:53:20   (  73.72,-101.09) 12/13/2023   18:54:21  (  73.71,-101.05)    1.35                61
 12/13/2023   19:44:02   ( -73.62,  66.47) 12/13/2023   19:43:50  ( -73.65,  66.43)    3.04                12
 12/13/2023   20:34:34   (  72.87,-124.52) 12/13/2023   20:33:29  (  72.93,-127.39)   94.26                65
 12/16/2023   10:20:16   ( -73.73,-152.80) 12/16/2023   10:21:26  ( -73.72,-152.81)    0.69                70
 12/16/2023   11:11:01   (  73.63,  14.75) 12/16/2023   11:10:53  (  73.64,  14.65)    3.09                 8
 12/16/2023   12:01:38   ( -73.28,-177.12) 12/16/2023   12:00:27  ( -73.31,-178.40)   41.14                71
 12/19/2023   01:47:16   (  73.80, 155.33) 12/19/2023   01:48:28  (  73.75, 155.48)    7.43                72
 12/19/2023   02:37:58   ( -73.69, -37.09) 12/19/2023   02:37:57  ( -73.68, -37.02)    2.17                 1
 12/19/2023   03:28:39   (  73.40, 130.92) 12/19/2023   03:27:27  (  73.44, 130.10)   26.32                72
 12/21/2023   17:14:17   ( -74.10, 102.89) 12/21/2023   17:15:27  ( -73.98, 104.23)   43.39                70
 12/21/2023   18:04:55   (  73.67, -88.74) 12/21/2023   18:04:58  (  73.68, -88.78)    1.89                 3
 12/21/2023   18:55:38   ( -73.61,  78.73) 12/21/2023   18:54:27  ( -73.62,  78.72)    1.65                71
 12/24/2023   08:41:18   (  74.24,  50.83) 12/24/2023   08:42:26  (  74.11,  52.77)   60.78                68
 12/24/2023   09:31:51   ( -73.68,-140.46) 12/24/2023   09:32:02  ( -73.69,-140.53)    2.40                11
 12/24/2023   10:22:37   (  73.65,  26.94) 12/24/2023   10:21:28  (  73.65,  27.02)    2.60                69
 12/27/2023   00:08:19   ( -74.49,  -1.53) 12/27/2023   00:09:24  ( -74.41,   1.71)   97.08                65
 12/27/2023   00:58:50   (  73.74, 167.72) 12/27/2023   00:59:02  (  73.75, 167.84)    3.74                12