Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 7 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)
 07/03/2022   13:07:36   ( -72.60, 161.12) 07/03/2022   13:08:44  ( -72.52, 163.10)   66.40                68
 07/03/2022   13:58:09   (  71.93, -30.24) 07/03/2022   13:58:19  (  71.95, -30.29)    2.41                10
 07/03/2022   14:48:52   ( -71.87, 137.18) 07/03/2022   14:47:48  ( -71.88, 137.23)    1.98                64
 07/06/2022   04:34:38   (  72.47, 109.66) 07/06/2022   04:35:47  (  72.37, 111.08)   48.78                69
 07/06/2022   05:25:12   ( -71.95, -82.01) 07/06/2022   05:25:23  ( -71.94, -82.07)    2.26                11
 07/06/2022   06:15:58   (  71.89,  85.41) 07/06/2022   06:14:49  (  71.90,  85.50)    3.34                69
 07/08/2022   20:01:41   ( -72.48,  57.88) 07/08/2022   20:02:51  ( -72.36,  59.29)   49.18                70
 07/08/2022   20:52:18   (  71.96,-133.79) 07/08/2022   20:52:24  (  71.94,-133.81)    2.74                 6
 07/08/2022   21:43:00   ( -71.86,  33.73) 07/08/2022   21:41:53  ( -71.88,  33.72)    3.13                67
 07/11/2022   11:28:44   (  72.35,   6.40) 07/11/2022   11:29:54  (  72.25,   7.33)   33.63                70
 07/11/2022   12:19:21   ( -71.99, 174.43) 07/11/2022   12:19:27  ( -71.98, 174.49)    2.31                 6
 07/11/2022   13:10:06   (  71.87, -18.05) 07/11/2022   13:08:54  (  71.87, -18.04)    0.18                72
 07/14/2022   02:55:47   ( -72.38, -45.38) 07/14/2022   02:56:58  ( -72.22, -44.47)   35.33                71
 07/14/2022   03:46:26   (  71.96, 122.74) 07/14/2022   03:46:28  (  71.96, 122.71)    1.01                 2
 07/14/2022   04:37:09   ( -71.90, -69.84) 07/14/2022   04:35:57  ( -71.91, -69.75)    3.10                72