Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 30.  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   ( -69.02, -13.73) 09/01/2020   00:53:00  ( -69.01, -13.70)    1.54                48
 09/01/2020   01:42:55   (  68.85, 153.81) 09/01/2020   01:42:28  (  68.85, 153.74)    2.50                27
 09/01/2020   02:33:20   ( -67.89, -37.62) 09/01/2020   02:32:13  ( -67.90, -39.77)   89.82                67
 09/03/2020   17:08:35   ( -69.03, 102.17) 09/03/2020   17:09:29  ( -69.01, 102.19)    1.84                54
 09/03/2020   17:59:19   (  68.92, -90.37) 09/03/2020   17:58:56  (  68.91, -90.30)    2.94                23
 09/03/2020   18:49:47   ( -68.12,  78.01) 09/03/2020   18:48:38  ( -68.13,  76.38)   67.38                69
 09/06/2020   09:24:58   ( -69.04,-141.94) 09/06/2020   09:25:58  ( -69.02,-141.92)    2.52                60
 09/06/2020   10:15:42   (  68.93,  25.52) 09/06/2020   10:15:25  (  68.91,  25.58)    3.27                17
 09/06/2020   11:06:13   ( -68.29,-166.30) 09/06/2020   11:05:03  ( -68.36,-167.47)   48.28                70
 09/09/2020   01:41:20   ( -69.06, -26.05) 09/09/2020   01:42:26  ( -69.03, -26.03)    3.46                66
 09/09/2020   02:32:03   (  68.90, 141.49) 09/09/2020   02:31:53  (  68.92, 141.47)    2.43                10
 09/09/2020   03:22:39   ( -68.52, -50.69) 09/09/2020   03:21:27  ( -68.59, -51.31)   26.07                72
 09/11/2020   17:57:43   ( -69.08,  89.84) 09/11/2020   17:58:54  ( -69.09,  89.93)    3.64                71
 09/11/2020   18:48:26   (  68.91,-102.62) 09/11/2020   18:48:22  (  68.92,-102.65)    1.24                 4
 09/11/2020   19:39:06   ( -68.76,  64.91) 09/11/2020   19:37:53  ( -68.76,  64.79)    5.11                73