Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 8.  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)
 09/09/2020   01:41:20   ( -69.03, -26.00) 09/09/2020   01:42:25  ( -69.05, -26.00)    2.18                65
 09/09/2020   02:32:04   (  68.91, 141.47) 09/09/2020   02:31:53  (  68.89, 141.44)    2.81                11
 09/09/2020   03:22:39   ( -68.50, -50.65) 09/09/2020   03:21:27  ( -68.56, -51.35)   29.03                72
 09/11/2020   17:57:43   ( -69.04,  89.90) 09/11/2020   17:58:54  ( -69.04,  89.86)    1.47                71
 09/11/2020   18:48:27   (  68.92,-102.63) 09/11/2020   18:48:21  (  68.93,-102.63)    0.72                 6
 09/11/2020   19:39:06   ( -68.72,  64.97) 09/11/2020   19:37:52  ( -68.77,  64.79)    8.72                74
 09/14/2020   10:14:09   ( -69.21,-154.42) 09/14/2020   10:15:21  ( -69.13,-154.14)   14.12                72
 09/14/2020   11:04:50   (  68.93,  13.27) 09/14/2020   11:04:50  (  68.91,  13.22)    3.25                 0
 09/14/2020   11:55:31   ( -68.83,-179.28) 09/14/2020   11:54:20  ( -68.80,-179.28)    3.26                71
 09/17/2020   02:30:34   ( -69.38, -38.75) 09/17/2020   02:31:46  ( -69.28, -38.07)   28.86                72
 09/17/2020   03:21:12   (  68.94, 129.17) 09/17/2020   03:21:17  (  68.94, 129.14)    1.10                 5
 09/17/2020   04:11:53   ( -68.84, -63.37) 09/17/2020   04:10:47  ( -68.84, -63.35)    0.88                66
 09/19/2020   18:47:01   ( -69.60,  76.85) 09/19/2020   18:48:11  ( -69.47,  78.07)   49.56                70
 09/19/2020   19:37:35   (  68.95,-114.93) 09/19/2020   19:37:45  (  68.97,-114.94)    1.84                10
 09/19/2020   20:28:16   ( -68.85,  52.53) 09/19/2020   20:27:15  ( -68.87,  52.57)    2.67                61