Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 8 25.  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)
 08/27/2023   09:24:56   ( -73.32,-139.75) 08/27/2023   09:25:44  ( -73.31,-139.72)    1.74                48
 08/27/2023   10:15:41   (  73.23,  27.78) 08/27/2023   10:15:11  (  73.22,  27.75)    1.07                30
 08/30/2023   00:52:03   (  73.30, 168.58) 08/30/2023   00:52:45  (  73.32, 168.55)    3.15                42
 08/30/2023   01:42:47   ( -73.27, -24.04) 08/30/2023   01:42:14  ( -73.26, -23.95)    3.13                33
 09/01/2023   16:19:09   ( -73.33, 116.76) 09/01/2023   16:19:48  ( -73.34, 116.82)    2.08                39
 09/01/2023   17:09:54   (  73.25, -75.75) 09/01/2023   17:09:15  (  73.24, -75.72)    1.04                39
 09/04/2023   07:46:16   (  73.33,  65.02) 09/04/2023   07:46:48  (  73.35,  65.11)    3.60                32
 09/04/2023   08:36:59   ( -73.24,-127.45) 09/04/2023   08:36:18  ( -73.24,-127.49)    1.14                41
 09/06/2023   23:13:20   ( -73.32,  13.31) 09/06/2023   23:13:50  ( -73.33,  13.30)    0.82                30
 09/07/2023   00:04:05   (  73.25,-179.22) 09/07/2023   00:03:17  (  73.23,-179.25)    2.61                48