Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 4.  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)
 09/06/2020   09:24:58   ( -69.05,-141.94) 09/06/2020   09:25:57  ( -69.03,-141.90)    2.07                59
 09/06/2020   10:15:41   (  68.88,  25.60) 09/06/2020   10:15:25  (  68.88,  25.54)    2.31                16
 09/06/2020   11:06:13   ( -68.30,-166.31) 09/06/2020   11:05:02  ( -68.37,-167.44)   47.45                71
 09/09/2020   01:41:19   ( -69.01, -25.97) 09/09/2020   01:42:25  ( -69.02, -26.04)    3.12                66
 09/09/2020   02:32:03   (  68.89, 141.50) 09/09/2020   02:31:52  (  68.91, 141.47)    2.85                11
 09/09/2020   03:22:39   ( -68.52, -50.69) 09/09/2020   03:21:26  ( -68.58, -51.31)   26.07                73
 09/11/2020   17:57:43   ( -69.07,  89.85) 09/11/2020   17:58:53  ( -69.05,  89.89)    2.62                70
 09/11/2020   18:48:27   (  68.96,-102.68) 09/11/2020   18:48:20  (  68.94,-102.61)    3.27                 7
 09/11/2020   19:39:05   ( -68.70,  64.99) 09/11/2020   19:37:52  ( -68.72,  64.75)   10.31                73
 09/14/2020   10:14:08   ( -69.19,-154.40) 09/14/2020   10:15:20  ( -69.13,-154.13)   12.81                72
 09/14/2020   11:04:49   (  68.92,  13.29) 09/14/2020   11:04:49  (  68.91,  13.23)    2.46                 0
 09/14/2020   11:55:30   ( -68.82,-179.26) 09/14/2020   11:54:19  ( -68.81,-179.27)    1.58                71
 09/17/2020   02:30:34   ( -69.37, -38.74) 09/17/2020   02:31:46  ( -69.26, -38.07)   28.54                72
 09/17/2020   03:21:12   (  68.94, 129.18) 09/17/2020   03:21:17  (  68.93, 129.13)    2.13                 5
 09/17/2020   04:11:53   ( -68.84, -63.36) 09/17/2020   04:10:47  ( -68.82, -63.36)    1.22                66