Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 8 17.  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)
 08/20/2022   03:14:35   ( -72.46, -49.90) 08/20/2022   03:15:46  ( -72.34, -48.92)   35.51                71
 08/20/2022   04:05:14   (  72.07, 118.18) 08/20/2022   04:05:16  (  72.09, 118.27)    3.65                 2
 08/20/2022   04:55:57   ( -71.99, -74.35) 08/20/2022   04:54:46  ( -71.97, -74.30)    2.46                71
 08/22/2022   18:41:37   (  72.36,-101.42) 08/22/2022   18:42:49  (  72.26,-100.83)   22.79                72
 08/22/2022   19:32:16   ( -72.06,  66.47) 08/22/2022   19:32:20  ( -72.09,  66.50)    2.90                 4
 08/22/2022   20:23:00   (  71.93,-125.97) 08/22/2022   20:21:48  (  71.94,-126.12)    5.07                72
 08/25/2022   10:08:39   ( -72.39,-153.23) 08/25/2022   10:09:51  ( -72.30,-152.52)   26.05                72
 08/25/2022   10:59:19   (  72.06,  14.72) 08/25/2022   10:59:20  (  72.09,  14.76)    3.24                 1
 08/25/2022   11:50:02   ( -71.97,-177.78) 08/25/2022   11:48:50  ( -71.98,-177.81)    1.59                72
 08/28/2022   01:35:41   (  72.30, 155.21) 08/28/2022   01:36:53  (  72.23, 155.61)   15.68                72
 08/28/2022   02:26:22   ( -72.10, -37.07) 08/28/2022   02:26:24  ( -72.07, -37.04)    3.10                 2
 08/28/2022   03:17:04   (  71.88, 130.66) 08/28/2022   03:15:52  (  71.92, 130.33)   12.00                72
 08/30/2022   17:02:44   ( -72.33, 103.42) 08/30/2022   17:03:56  ( -72.26, 103.90)   17.92                72
 08/30/2022   17:53:25   (  72.07, -88.75) 08/30/2022   17:53:25  (  72.05, -88.84)    3.63                 0