Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 4 8.  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)
 04/10/2020   02:12:15   (  71.44, 142.27) 04/10/2020   02:13:21  (  71.36, 144.75)   88.50                66
 04/10/2020   03:02:41   ( -70.52, -48.86) 04/10/2020   03:03:04  ( -70.54, -48.88)    2.78                23
 04/10/2020   03:53:25   (  70.44, 118.57) 04/10/2020   03:52:31  (  70.44, 118.60)    1.18                54
 04/12/2020   19:19:06   ( -70.57,  66.97) 04/12/2020   19:19:33  ( -70.55,  66.99)    2.39                27
 04/12/2020   20:09:49   (  70.43,-125.51) 04/12/2020   20:09:00  (  70.44,-125.52)    0.63                49
 04/15/2020   11:35:30   ( -70.56,-177.12) 04/15/2020   11:36:02  ( -70.57,-177.10)    0.85                32
 04/15/2020   12:26:13   (  70.43,  -9.59) 04/15/2020   12:25:29  (  70.45,  -9.63)    3.14                44
 04/18/2020   03:51:54   ( -70.56, -61.21) 04/18/2020   03:52:32  ( -70.55, -61.25)    1.82                38
 04/18/2020   04:42:38   (  70.48, 106.23) 04/18/2020   04:41:58  (  70.49, 106.30)    3.07                40
 04/20/2020   20:08:17   ( -70.56,  54.70) 04/20/2020   20:09:01  ( -70.56,  54.62)    2.91                44
 04/20/2020   20:59:01   (  70.47,-137.86) 04/20/2020   20:58:27  (  70.50,-137.82)    2.78                34