Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 1.  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)
 09/03/2020   17:08:34   ( -68.98, 102.24) 09/03/2020   17:09:29  ( -69.00, 102.17)    3.21                55
 09/03/2020   17:59:18   (  68.87, -90.30) 09/03/2020   17:58:56  (  68.89, -90.32)    2.93                22
 09/03/2020   18:49:46   ( -68.07,  78.07) 09/03/2020   18:48:37  ( -68.17,  76.43)   68.90                69
 09/06/2020   09:24:58   ( -69.04,-141.94) 09/06/2020   09:25:57  ( -69.05,-141.88)    2.62                59
 09/06/2020   10:15:41   (  68.88,  25.60) 09/06/2020   10:15:25  (  68.89,  25.56)    2.15                16
 09/06/2020   11:06:13   ( -68.29,-166.31) 09/06/2020   11:05:03  ( -68.34,-167.49)   48.92                70
 09/09/2020   01:41:21   ( -69.06, -26.04) 09/09/2020   01:42:26  ( -69.05, -26.00)    1.74                65
 09/09/2020   02:32:04   (  68.89, 141.50) 09/09/2020   02:31:54  (  68.89, 141.44)    2.39                10
 09/09/2020   03:22:40   ( -68.52, -50.69) 09/09/2020   03:21:28  ( -68.56, -51.34)   26.93                72
 09/11/2020   17:57:43   ( -69.07,  89.86) 09/11/2020   17:58:54  ( -69.05,  89.88)    1.90                71
 09/11/2020   18:48:27   (  68.96,-102.68) 09/11/2020   18:48:21  (  68.94,-102.62)    3.10                 6
 09/11/2020   19:39:06   ( -68.75,  64.93) 09/11/2020   19:37:52  ( -68.78,  64.82)    5.93                74
 09/14/2020   10:14:09   ( -69.24,-154.47) 09/14/2020   10:15:21  ( -69.16,-154.10)   17.20                72
 09/14/2020   11:04:49   (  68.92,  13.29) 09/14/2020   11:04:50  (  68.94,  13.26)    2.37                 1
 09/14/2020   11:55:30   ( -68.81,-179.25) 09/14/2020   11:54:20  ( -68.84,-179.24)    2.50                70