Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 5 1.  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)
 05/03/2023   04:03:09   (  73.00, 119.75) 05/03/2023   04:03:54  (  72.98, 119.81)    2.36                45
 05/03/2023   04:53:52   ( -72.91, -72.75) 05/03/2023   04:53:23  ( -72.91, -72.69)    1.85                29
 05/05/2023   19:30:15   ( -72.98,  68.06) 05/05/2023   19:30:56  ( -72.96,  68.00)    2.57                41
 05/05/2023   20:21:00   (  72.90,-124.46) 05/05/2023   20:20:22  (  72.92,-124.43)    2.92                38
 05/08/2023   10:57:23   (  72.98,  16.31) 05/08/2023   10:57:54  (  72.99,  16.31)    1.67                31
 05/08/2023   11:48:07   ( -72.93,-176.28) 05/08/2023   11:47:23  ( -72.93,-176.18)    3.40                44
 05/11/2023   02:24:29   ( -72.97, -35.41) 05/11/2023   02:24:55  ( -72.98, -35.47)    2.34                26
 05/11/2023   03:15:14   (  72.90, 132.04) 05/11/2023   03:14:22  (  72.88, 131.98)    2.75                52
 05/13/2023   17:51:37   (  73.01, -87.24) 05/13/2023   17:51:52  (  73.02, -87.15)    2.96                15
 05/13/2023   18:42:20   ( -72.90,  80.31) 05/13/2023   18:41:22  ( -72.91,  80.26)    1.66                58