Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 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)
 09/01/2020   00:52:12   ( -68.99, -13.69) 09/01/2020   00:53:01  ( -68.98, -13.74)    2.24                49
 09/01/2020   01:42:56   (  68.88, 153.77) 09/01/2020   01:42:28  (  68.88, 153.78)    0.29                28
 09/01/2020   02:33:20   ( -67.86, -37.59) 09/01/2020   02:32:13  ( -67.93, -39.74)   90.35                67
 09/03/2020   17:08:34   ( -69.00, 102.21) 09/03/2020   17:09:29  ( -68.98, 102.15)    3.17                55
 09/03/2020   17:59:18   (  68.89, -90.33) 09/03/2020   17:58:56  (  68.88, -90.34)    1.26                22
 09/03/2020   18:49:46   ( -68.09,  78.04) 09/03/2020   18:48:37  ( -68.15,  76.41)   68.18                69
 09/06/2020   09:24:57   ( -69.01,-141.89) 09/06/2020   09:25:57  ( -69.04,-141.90)    2.98                60
 09/06/2020   10:15:41   (  68.90,  25.57) 09/06/2020   10:15:25  (  68.88,  25.54)    3.02                16
 09/06/2020   11:06:13   ( -68.32,-166.33) 09/06/2020   11:05:02  ( -68.38,-167.44)   46.02                71
 09/09/2020   01:41:20   ( -69.03, -26.00) 09/09/2020   01:42:26  ( -69.04, -26.02)    1.58                66
 09/09/2020   02:32:04   (  68.92, 141.46) 09/09/2020   02:31:53  (  68.93, 141.49)    1.78                11
 09/09/2020   03:22:40   ( -68.55, -50.72) 09/09/2020   03:21:27  ( -68.60, -51.29)   24.01                73
 09/11/2020   17:57:43   ( -69.04,  89.89) 09/11/2020   17:58:55  ( -69.04,  89.86)    1.12                72
 09/11/2020   18:48:27   (  68.93,-102.65) 09/11/2020   18:48:22  (  68.93,-102.64)    0.92                 5
 09/11/2020   19:39:06   ( -68.72,  64.96) 09/11/2020   19:37:53  ( -68.77,  64.80)    8.29                73