Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 7 16.  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)
 07/18/2023   18:28:49   ( -73.18,  84.03) 07/18/2023   18:29:20  ( -73.20,  84.10)    3.02                31
 07/18/2023   19:19:34   (  73.07,-108.44) 07/18/2023   19:18:48  (  73.06,-108.53)    3.60                46
 07/21/2023   09:55:59   (  73.18,  32.27) 07/21/2023   09:56:21  (  73.18,  32.32)    1.66                22
 07/21/2023   10:46:42   ( -73.11,-160.26) 07/21/2023   10:45:50  ( -73.11,-160.18)    2.80                52
 07/24/2023   00:32:38   (  73.98, 171.31) 07/24/2023   00:33:43  (  73.86, 174.37)   95.29                65
 07/24/2023   01:23:06   ( -73.17, -19.46) 07/24/2023   01:23:24  ( -73.17, -19.46)    1.01                18
 07/24/2023   02:13:51   (  73.07, 148.08) 07/24/2023   02:12:51  (  73.07, 148.00)    2.78                60
 07/26/2023   15:59:41   ( -73.78, 120.06) 07/26/2023   16:00:49  ( -73.66, 122.19)   67.81                68
 07/26/2023   16:50:15   (  73.14, -71.13) 07/26/2023   16:50:24  (  73.15, -71.23)    3.72                 9
 07/26/2023   17:40:58   ( -73.07,  96.34) 07/26/2023   17:39:53  ( -73.09,  96.28)    3.14                65
 07/29/2023   07:26:42   (  73.41,  69.19) 07/29/2023   07:27:54  (  73.32,  69.71)   19.79                72
 07/29/2023   08:17:21   ( -73.14,-122.88) 07/29/2023   08:17:25  ( -73.15,-122.99)    3.57                 4