Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 7 28.  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)
 07/29/2020   00:46:51   (  70.55, 165.33) 07/29/2020   00:47:22  (  70.55, 165.26)    2.53                31
 07/29/2020   01:37:33   ( -70.46, -27.20) 07/29/2020   01:36:51  ( -70.49, -27.20)    3.59                42
 07/31/2020   17:03:15   (  70.60, -78.83) 07/31/2020   17:03:51  (  70.59, -78.80)    1.55                36
 07/31/2020   17:53:57   ( -70.51,  88.64) 07/31/2020   17:53:21  ( -70.48,  88.66)    3.16                36
 08/03/2020   09:19:38   (  70.59,  37.09) 08/03/2020   09:20:21  (  70.57,  37.04)    3.36                43
 08/03/2020   10:10:20   ( -70.50,-155.44) 08/03/2020   10:09:50  ( -70.51,-155.40)    2.29                30
 08/06/2020   01:36:00   (  70.59, 153.01) 08/06/2020   01:36:49  (  70.60, 152.97)    1.64                49
 08/06/2020   02:26:42   ( -70.49, -39.52) 08/06/2020   02:26:19  ( -70.49, -39.55)    1.21                23
 08/08/2020   17:52:24   (  70.64, -91.16) 08/08/2020   17:53:18  (  70.62, -91.11)    2.42                54
 08/08/2020   18:43:06   ( -70.54,  76.32) 08/08/2020   18:42:48  ( -70.52,  76.37)    3.00                18