Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 7 31.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2020   13:01:19   (  69.01, -16.09) 08/02/2020   13:02:15  (  68.99, -16.03)    3.56                56
 08/02/2020   13:52:00   ( -68.87, 151.42) 08/02/2020   13:51:45  ( -68.88, 151.47)    2.18                15
 08/02/2020   14:42:32   (  68.15, -40.32) 08/02/2020   14:41:22  (  68.21, -41.70)   57.59                70
 08/05/2020   05:17:42   (  69.01,  99.82) 08/05/2020   05:18:44  (  68.99,  99.86)    2.82                62
 08/05/2020   06:08:23   ( -68.87, -92.67) 08/05/2020   06:08:14  ( -68.88, -92.65)    1.59                 9
 08/05/2020   06:58:59   (  68.36,  75.31) 08/05/2020   06:57:48  (  68.38,  74.38)   38.40                71
 08/07/2020   21:34:05   (  69.01,-144.27) 08/07/2020   21:35:13  (  68.98,-144.27)    3.20                68
 08/07/2020   22:24:46   ( -68.87,  23.24) 08/07/2020   22:24:43  ( -68.88,  23.23)    1.07                 3
 08/07/2020   23:15:25   (  68.53,-168.99) 08/07/2020   23:14:13  (  68.60,-169.47)   21.26                72
 08/10/2020   13:50:29   (  69.07, -28.44) 08/10/2020   13:51:41  (  69.03, -28.33)    6.23                72
 08/10/2020   14:41:09   ( -68.88, 139.15) 08/10/2020   14:41:12  ( -68.87, 139.10)    1.76                 3
 08/10/2020   15:31:52   (  68.75, -53.37) 08/10/2020   15:30:39  (  68.76, -53.40)    1.61                73
 08/13/2020   06:06:55   (  69.29,  87.17) 08/13/2020   06:08:06  (  69.19,  87.75)   25.94                71
 08/13/2020   06:57:32   ( -68.94,-105.02) 08/13/2020   06:57:39  ( -68.92,-104.96)    3.18                 7
 08/13/2020   07:48:14   (  68.75,  62.54) 08/13/2020   07:47:07  (  68.75,  62.47)    2.89                67