Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 11 27.  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)
 11/29/2020   08:42:53   (  70.69,  46.54) 11/29/2020   08:43:37  (  70.71,  46.47)    3.21                44
 11/29/2020   09:33:36   ( -70.64,-146.07) 11/29/2020   09:33:06  ( -70.65,-145.99)    3.05                30
 12/02/2020   00:59:15   (  70.71, 162.42) 12/02/2020   01:00:06  (  70.73, 162.38)    2.55                51
 12/02/2020   01:49:57   ( -70.61, -30.09) 12/02/2020   01:49:36  ( -70.62, -30.15)    2.40                21
 12/02/2020   02:40:24   (  69.66, 138.70) 12/02/2020   02:39:18  (  69.69, 136.16)   98.08                66
 12/04/2020   17:15:36   (  70.73, -81.69) 12/04/2020   17:16:34  (  70.74, -81.72)    1.40                58
 12/04/2020   18:06:18   ( -70.63,  85.79) 12/04/2020   18:06:04  ( -70.64,  85.75)    1.49                14
 12/04/2020   18:56:50   (  69.94,-105.81) 12/04/2020   18:55:41  (  69.98,-107.56)   66.59                69
 12/07/2020   09:31:58   (  70.76,  34.19) 12/07/2020   09:33:03  (  70.75,  34.17)    1.04                65
 12/07/2020   10:22:40   ( -70.66,-158.33) 12/07/2020   10:22:33  ( -70.65,-158.35)    1.17                 7
 12/07/2020   11:13:16   (  70.18,   9.74) 12/07/2020   11:12:05  (  70.26,   8.73)   39.34                71
 12/10/2020   01:48:20   (  70.79, 150.06) 12/10/2020   01:49:31  (  70.81, 150.14)    3.70                71
 12/10/2020   02:39:02   ( -70.69, -42.45) 12/10/2020   02:39:02  ( -70.66, -42.46)    3.48                 0
 12/10/2020   03:29:43   (  70.48, 125.21) 12/10/2020   03:28:30  (  70.49, 124.93)   10.26                73