Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 7 6.  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)
 07/06/2022   04:34:38   (  72.44, 109.71) 07/06/2022   04:35:48  (  72.34, 111.02)   45.20                70
 07/06/2022   05:25:13   ( -71.98, -82.07) 07/06/2022   05:25:23  ( -71.95, -82.04)    3.06                10
 07/06/2022   06:15:58   (  71.86,  85.47) 07/06/2022   06:14:50  (  71.86,  85.45)    0.79                68
 07/08/2022   20:01:41   ( -72.46,  57.93) 07/08/2022   20:02:51  ( -72.37,  59.31)   47.30                70
 07/08/2022   20:52:18   (  71.93,-133.73) 07/08/2022   20:52:24  (  71.96,-133.79)    3.23                 6
 07/08/2022   21:43:01   ( -71.88,  33.68) 07/08/2022   21:41:53  ( -71.89,  33.74)    2.23                68
 07/11/2022   11:28:43   (  72.32,   6.47) 07/11/2022   11:29:54  (  72.20,   7.26)   29.55                71
 07/11/2022   12:19:20   ( -71.96, 174.49) 07/11/2022   12:19:26  ( -71.98, 174.50)    2.53                 6
 07/11/2022   13:10:06   (  71.89, -18.08) 07/11/2022   13:08:53  (  71.88, -18.03)    2.05                73
 07/14/2022   02:55:46   ( -72.34, -45.32) 07/14/2022   02:56:57  ( -72.22, -44.47)   31.81                71
 07/14/2022   03:46:26   (  71.97, 122.71) 07/14/2022   03:46:27  (  71.96, 122.71)    1.21                 1
 07/14/2022   04:37:08   ( -71.87, -69.77) 07/14/2022   04:35:57  ( -71.85, -69.84)    3.06                71
 07/16/2022   18:22:48   (  72.16, -96.70) 07/16/2022   18:23:59  (  72.14, -96.37)   11.50                71
 07/16/2022   19:13:28   ( -71.95,  71.02) 07/16/2022   19:13:30  ( -71.98,  70.98)    3.13                 2
 07/16/2022   20:04:11   (  71.73,-121.26) 07/16/2022   20:02:58  (  71.82,-121.65)   16.51                73
 07/19/2022   09:49:51   ( -72.19,-148.49) 07/19/2022   09:51:02  ( -72.15,-148.11)   13.79                71
 07/19/2022   10:40:34   (  71.97,  19.23) 07/19/2022   10:40:30  (  71.99,  19.25)    1.69                 4