Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 1 8.  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)
 01/10/2022   04:40:54   ( -72.41, -73.25) 01/10/2022   04:42:00  ( -72.33, -70.60)   89.79                66
 01/10/2022   05:31:23   (  71.54,  95.73) 01/10/2022   05:31:40  (  71.54,  95.68)    2.00                17
 01/10/2022   06:22:07   ( -71.47, -96.83) 01/10/2022   06:21:09  ( -71.48, -96.79)    1.53                58
 01/12/2022   20:07:58   (  72.10,-124.40) 01/12/2022   20:09:07  (  72.01,-122.93)   51.33                69
 01/12/2022   20:58:33   ( -71.56,  43.92) 01/12/2022   20:58:43  ( -71.57,  43.95)    1.30                10
 01/12/2022   21:49:16   (  71.46,-148.58) 01/12/2022   21:48:09  (  71.47,-148.56)    1.67                67
 01/15/2022   11:35:02   ( -71.87,-175.72) 01/15/2022   11:36:14  ( -71.76,-175.12)   23.98                72
 01/15/2022   12:25:42   (  71.56,  -7.84) 01/15/2022   12:25:43  (  71.55,  -7.83)    0.77                 1
 01/15/2022   13:16:25   ( -71.43, 159.70) 01/15/2022   13:15:13  ( -71.44, 159.62)    2.88                72
 01/18/2022   03:02:08   (  71.66, 132.89) 01/18/2022   03:03:17  (  71.63, 132.90)    3.37                69
 01/18/2022   03:52:51   ( -71.53, -59.56) 01/18/2022   03:52:47  ( -71.52, -59.65)    3.29                 4
 01/18/2022   04:43:29   (  71.12, 108.48) 01/18/2022   04:42:18  (  71.20, 107.48)   37.08                71
 01/20/2022   18:29:17   ( -71.63,  81.17) 01/20/2022   18:30:20  ( -71.64,  81.17)    1.40                63
 01/20/2022   19:20:01   (  71.53,-111.34) 01/20/2022   19:19:47  (  71.54,-111.36)    1.43                14