Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 26.  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)
 08/26/2020   16:19:26   ( -68.96, 114.52) 08/26/2020   16:20:03  ( -68.98, 114.51)    1.94                37
 08/26/2020   17:10:10   (  68.85, -78.03) 08/26/2020   17:09:30  (  68.88, -77.98)    3.06                40
 08/29/2020   08:35:49   ( -68.97,-129.58) 08/29/2020   08:36:32  ( -68.98,-129.61)    1.70                43
 08/29/2020   09:26:33   (  68.86,  37.88) 08/29/2020   09:25:59  (  68.87,  37.90)    1.32                34
 09/01/2020   00:52:12   ( -68.98, -13.68) 09/01/2020   00:53:01  ( -68.97, -13.74)    2.81                49
 09/01/2020   01:42:56   (  68.87, 153.78) 09/01/2020   01:42:28  (  68.86, 153.76)    1.34                28
 09/01/2020   02:33:20   ( -67.85, -37.58) 09/01/2020   02:32:13  ( -67.92, -39.74)   91.04                67
 09/03/2020   17:08:34   ( -68.99, 102.22) 09/03/2020   17:09:28  ( -69.01, 102.19)    2.59                54
 09/03/2020   17:59:18   (  68.88, -90.32) 09/03/2020   17:58:55  (  68.90, -90.31)    1.91                23
 09/03/2020   18:49:46   ( -68.08,  78.05) 09/03/2020   18:48:37  ( -68.13,  76.38)   69.56                69
 09/06/2020   09:24:58   ( -69.06,-141.96) 09/06/2020   09:25:56  ( -69.05,-141.88)    3.15                58
 09/06/2020   10:15:41   (  68.90,  25.57) 09/06/2020   10:15:24  (  68.88,  25.54)    2.59                17
 09/06/2020   11:06:12   ( -68.25,-166.26) 09/06/2020   11:05:02  ( -68.33,-167.50)   51.79                70
 09/09/2020   01:41:20   ( -69.02, -25.99) 09/09/2020   01:42:25  ( -69.02, -26.04)    1.93                65
 09/09/2020   02:32:04   (  68.91, 141.47) 09/09/2020   02:31:52  (  68.90, 141.46)    1.22                12