Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 11 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)
 11/26/2020   16:26:31   (  70.68, -69.38) 11/26/2020   16:27:07  (  70.71, -69.40)    3.40                36
 11/26/2020   17:17:13   ( -70.59,  98.10) 11/26/2020   17:16:37  ( -70.60,  98.06)    2.07                36
 11/29/2020   08:42:53   (  70.70,  46.51) 11/29/2020   08:43:37  (  70.69,  46.44)    2.97                44
 11/29/2020   09:33:35   ( -70.60,-146.00) 11/29/2020   09:33:06  ( -70.63,-146.01)    3.61                29
 12/02/2020   00:59:15   (  70.72, 162.40) 12/02/2020   01:00:06  (  70.72, 162.36)    1.86                51
 12/02/2020   01:49:57   ( -70.62, -30.11) 12/02/2020   01:49:36  ( -70.61, -30.17)    2.46                21
 12/02/2020   02:40:24   (  69.67, 138.68) 12/02/2020   02:39:18  (  69.68, 136.14)   97.91                66
 12/04/2020   17:15:37   (  70.75, -81.71) 12/04/2020   17:16:35  (  70.74, -81.73)    1.45                58
 12/04/2020   18:06:19   ( -70.64,  85.78) 12/04/2020   18:06:05  ( -70.63,  85.74)    1.64                14
 12/04/2020   18:56:50   (  69.90,-105.75) 12/04/2020   18:55:42  (  69.97,-107.57)   69.82                68
 12/07/2020   09:31:58   (  70.77,  34.17) 12/07/2020   09:33:03  (  70.75,  34.17)    2.31                65
 12/07/2020   10:22:40   ( -70.67,-158.34) 12/07/2020   10:22:33  ( -70.65,-158.35)    1.96                 7
 12/07/2020   11:13:16   (  70.19,   9.73) 12/07/2020   11:12:05  (  70.26,   8.72)   38.69                71