Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 6 8.  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)
 06/09/2023   03:32:13   ( -73.05, -52.12) 06/09/2023   03:32:58  ( -73.05, -52.17)    1.81                45
 06/09/2023   04:22:57   (  72.99, 115.33) 06/09/2023   04:22:24  (  72.96, 115.31)    3.23                33
 06/11/2023   18:59:23   (  73.05,-103.87) 06/11/2023   19:00:00  (  73.04,-103.93)    2.24                37
 06/11/2023   19:50:07   ( -72.99,  63.58) 06/11/2023   19:49:29  ( -72.98,  63.57)    1.21                38
 06/14/2023   10:26:33   ( -73.05,-155.63) 06/14/2023   10:27:05  ( -73.04,-155.71)    3.24                32
 06/14/2023   11:17:18   (  72.99,  11.81) 06/14/2023   11:16:31  (  73.00,  11.86)    1.75                47
 06/17/2023   01:53:44   (  73.07, 152.58) 06/17/2023   01:54:06  (  73.09, 152.64)    2.75                22
 06/17/2023   02:44:28   ( -73.00, -39.96) 06/17/2023   02:43:36  ( -72.97, -39.95)    3.09                52
 06/19/2023   16:30:24   (  73.84, -68.28) 06/19/2023   16:31:29  (  73.78, -65.30)   92.75                65
 06/19/2023   17:20:54   ( -73.08, 100.80) 06/19/2023   17:21:10  ( -73.09, 100.89)    3.15                16
 06/19/2023   18:11:38   (  72.97, -91.65) 06/19/2023   18:10:37  (  73.00, -91.65)    2.77                61