Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 8 14.  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)
 08/14/2022   20:20:29   ( -72.48,  53.55) 08/14/2022   20:21:40  ( -72.36,  54.63)   38.59                71
 08/14/2022   21:11:08   (  72.07,-138.34) 08/14/2022   21:11:11  (  72.06,-138.26)    2.87                 3
 08/14/2022   22:01:50   ( -71.95,  29.20) 08/14/2022   22:00:41  ( -71.94,  29.16)    1.92                69
 08/17/2022   11:47:32   (  72.40,   1.96) 08/17/2022   11:48:43  (  72.31,   2.77)   29.67                71
 08/17/2022   12:38:10   ( -72.07, 169.92) 08/17/2022   12:38:15  ( -72.08, 170.00)    2.91                 5
 08/17/2022   13:28:55   (  71.98, -22.59) 08/17/2022   13:27:42  (  71.99, -22.51)    2.83                73
 08/20/2022   03:14:35   ( -72.45, -49.87) 08/20/2022   03:15:46  ( -72.37, -48.88)   34.74                71
 08/20/2022   04:05:14   (  72.06, 118.21) 08/20/2022   04:05:17  (  72.06, 118.21)    0.27                 3
 08/20/2022   04:55:57   ( -71.98, -74.32) 08/20/2022   04:54:46  ( -72.00, -74.26)    3.30                71
 08/22/2022   18:41:37   (  72.40,-101.51) 08/22/2022   18:42:48  (  72.28,-100.78)   27.69                71
 08/22/2022   19:32:15   ( -72.05,  66.49) 08/22/2022   19:32:20  ( -72.06,  66.46)    1.48                 5
 08/22/2022   20:23:00   (  71.97,-126.06) 08/22/2022   20:21:47  (  71.96,-126.07)    1.20                73
 08/25/2022   10:08:40   ( -72.44,-153.32) 08/25/2022   10:09:51  ( -72.33,-152.46)   31.40                71
 08/25/2022   10:59:19   (  72.06,  14.73) 08/25/2022   10:59:21  (  72.07,  14.72)    0.92                 2
 08/25/2022   11:50:02   ( -71.96,-177.77) 08/25/2022   11:48:51  ( -71.96,-177.84)    2.34                71
 08/28/2022   01:35:42   (  72.36, 155.10) 08/28/2022   01:36:53  (  72.27, 155.68)   21.87                71
 08/28/2022   02:26:21   ( -72.05, -36.98) 08/28/2022   02:26:25  ( -72.06, -37.06)    3.13                 4
 08/28/2022   03:17:05   (  71.93, 130.55) 08/28/2022   03:15:52  (  71.95, 130.40)    5.76                73