Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 1 5.  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)
 01/07/2022   14:04:13   ( -71.55, 147.49) 01/07/2022   14:04:39  ( -71.56, 147.46)    1.34                26
 01/07/2022   14:54:58   (  71.49, -45.09) 01/07/2022   14:54:06  (  71.46, -45.05)    3.23                52
 01/10/2022   04:40:54   ( -72.41, -73.23) 01/10/2022   04:42:00  ( -72.36, -70.55)   90.54                66
 01/10/2022   05:31:24   (  71.59,  95.65) 01/10/2022   05:31:40  (  71.56,  95.72)    3.35                16
 01/10/2022   06:22:07   ( -71.46, -96.82) 01/10/2022   06:21:10  ( -71.45, -96.84)    1.58                57
 01/12/2022   20:07:57   (  72.10,-124.39) 01/12/2022   20:09:07  (  71.99,-122.96)   50.49                70
 01/12/2022   20:58:32   ( -71.56,  43.93) 01/12/2022   20:58:43  ( -71.55,  43.93)    0.51                11
 01/12/2022   21:49:16   (  71.45,-148.57) 01/12/2022   21:48:10  (  71.45,-148.59)    0.52                66
 01/15/2022   11:35:03   ( -71.91,-175.81) 01/15/2022   11:36:14  ( -71.82,-175.02)   29.26                71
 01/15/2022   12:25:42   (  71.56,  -7.84) 01/15/2022   12:25:44  (  71.56,  -7.82)    0.60                 2
 01/15/2022   13:16:25   ( -71.43, 159.70) 01/15/2022   13:15:14  ( -71.45, 159.63)    3.40                71
 01/18/2022   03:02:08   (  71.66, 132.89) 01/18/2022   03:03:18  (  71.66, 132.95)    1.97                70
 01/18/2022   03:52:51   ( -71.53, -59.56) 01/18/2022   03:52:48  ( -71.55, -59.60)    2.63                 3
 01/18/2022   04:43:30   (  71.17, 108.39) 01/18/2022   04:42:19  (  71.23, 107.52)   31.75                71