Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 8 19.  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)
 08/20/2022   03:14:35   ( -72.49, -49.94) 08/20/2022   03:15:45  ( -72.38, -48.86)   38.34                70
 08/20/2022   04:05:13   (  72.04, 118.24) 08/20/2022   04:05:16  (  72.07, 118.24)    3.69                 3
 08/20/2022   04:55:56   ( -71.96, -74.29) 08/20/2022   04:54:46  ( -71.95, -74.34)    1.95                70
 08/22/2022   18:41:37   (  72.38,-101.47) 08/22/2022   18:42:48  (  72.29,-100.77)   25.50                71
 08/22/2022   19:32:16   ( -72.09,  66.42) 08/22/2022   19:32:20  ( -72.07,  66.46)    2.77                 4
 08/22/2022   20:23:00   (  71.95,-126.02) 08/22/2022   20:21:47  (  71.97,-126.06)    2.62                73
 08/25/2022   10:08:40   ( -72.42,-153.28) 08/25/2022   10:09:51  ( -72.33,-152.46)   29.45                71
 08/25/2022   10:59:20   (  72.09,  14.67) 08/25/2022   10:59:21  (  72.07,  14.72)    2.65                 1
 08/25/2022   11:50:03   ( -72.00,-177.83) 08/25/2022   11:48:50  ( -72.01,-177.75)    3.31                73
 08/28/2022   01:35:42   (  72.33, 155.15) 08/28/2022   01:36:53  (  72.27, 155.68)   19.24                71
 08/28/2022   02:26:22   ( -72.08, -37.04) 08/28/2022   02:26:24  ( -72.10, -36.99)    3.11                 2
 08/28/2022   03:17:04   (  71.91, 130.60) 08/28/2022   03:15:51  (  71.95, 130.39)    8.47                73
 08/30/2022   17:02:44   ( -72.37, 103.35) 08/30/2022   17:03:55  ( -72.29, 103.95)   22.21                71
 08/30/2022   17:53:25   (  72.10, -88.82) 08/30/2022   17:53:24  (  72.08, -88.78)    3.25                 1