Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 7 2.  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   ( -72.62, 161.10) 07/03/2022   13:08:44  ( -72.50, 163.07)   66.92                68
 07/03/2022   13:58:10   (  71.95, -30.27) 07/03/2022   13:58:20  (  71.93, -30.32)    2.15                10
 07/03/2022   14:48:53   ( -71.89, 137.16) 07/03/2022   14:47:49  ( -71.87, 137.21)    2.86                64
 07/06/2022   04:34:39   (  72.48, 109.63) 07/06/2022   04:35:48  (  72.36, 111.05)   49.42                69
 07/06/2022   05:25:13   ( -71.96, -82.04) 07/06/2022   05:25:23  ( -71.98, -82.00)    1.82                10
 07/06/2022   06:15:59   (  71.90,  85.39) 07/06/2022   06:14:50  (  71.88,  85.48)    3.67                69
 07/08/2022   20:01:41   ( -72.50,  57.86) 07/08/2022   20:02:50  ( -72.40,  59.36)   51.49                69
 07/08/2022   20:52:18   (  71.98,-133.81) 07/08/2022   20:52:23  (  71.98,-133.75)    2.14                 5
 07/08/2022   21:43:00   ( -71.87,  33.71) 07/08/2022   21:41:53  ( -71.87,  33.69)    0.77                67
 07/11/2022   11:28:43   (  72.31,   6.48) 07/11/2022   11:29:54  (  72.23,   7.30)   29.35                71
 07/11/2022   12:19:20   ( -71.95, 174.51) 07/11/2022   12:19:27  ( -71.96, 174.46)    1.93                 7
 07/11/2022   13:10:06   (  71.89, -18.07) 07/11/2022   13:08:54  (  71.86, -18.07)    3.31                72
 07/14/2022   02:55:46   ( -72.34, -45.30) 07/14/2022   02:56:57  ( -72.26, -44.41)   31.71                71
 07/14/2022   03:46:26   (  71.97, 122.72) 07/14/2022   03:46:27  (  71.99, 122.77)    3.06                 1
 07/14/2022   04:37:08   ( -71.86, -69.76) 07/14/2022   04:35:57  ( -71.89, -69.78)    2.81                71