Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 4 29.  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)
 04/30/2023   12:36:01   ( -72.97, 171.56) 04/30/2023   12:36:56  ( -72.96, 171.52)    1.50                55
 04/30/2023   13:26:46   (  72.88, -20.93) 04/30/2023   13:26:23  (  72.87, -21.01)    2.42                23
 05/03/2023   04:03:09   (  72.99, 119.78) 05/03/2023   04:03:54  (  73.00, 119.84)    2.47                45
 05/03/2023   04:53:52   ( -72.90, -72.72) 05/03/2023   04:53:24  ( -72.88, -72.76)    2.42                28
 05/05/2023   19:30:15   ( -72.96,  68.09) 05/05/2023   19:30:56  ( -72.98,  68.05)    2.75                41
 05/05/2023   20:21:00   (  72.88,-124.44) 05/05/2023   20:20:23  (  72.89,-124.50)    2.06                37
 05/08/2023   10:57:23   (  72.97,  16.34) 05/08/2023   10:57:55  (  72.97,  16.26)    2.52                32
 05/08/2023   11:48:07   ( -72.92,-176.25) 05/08/2023   11:47:24  ( -72.91,-176.22)    1.21                43
 05/11/2023   02:24:30   ( -73.00, -35.48) 05/11/2023   02:24:55  ( -73.02, -35.41)    3.03                25
 05/11/2023   03:15:15   (  72.94, 131.97) 05/11/2023   03:14:22  (  72.92, 132.04)    3.29                53