Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 7.  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)    2.62                65
 09/09/2020   02:32:04   (  68.91, 141.47) 09/09/2020   02:31:53  (  68.89, 141.44)    2.30                11
 09/09/2020   03:22:39   ( -68.49, -50.65) 09/09/2020   03:21:27  ( -68.56, -51.34)   29.04                72
 09/11/2020   17:57:43   ( -69.04,  89.90) 09/11/2020   17:58:54  ( -69.04,  89.86)    1.26                71
 09/11/2020   18:48:27   (  68.92,-102.63) 09/11/2020   18:48:21  (  68.93,-102.63)    1.00                 6
 09/11/2020   19:39:06   ( -68.72,  64.97) 09/11/2020   19:37:52  ( -68.77,  64.80)    8.70                74
 09/14/2020   10:14:08   ( -69.21,-154.43) 09/14/2020   10:15:20  ( -69.13,-154.13)   14.42                72
 09/14/2020   11:04:49   (  68.94,  13.26) 09/14/2020   11:04:49  (  68.91,  13.23)    3.09                 0
 09/14/2020   11:55:30   ( -68.84,-179.28) 09/14/2020   11:54:19  ( -68.81,-179.27)    3.35                71
 09/17/2020   02:30:34   ( -69.38, -38.76) 09/17/2020   02:31:46  ( -69.28, -38.06)   29.44                72
 09/17/2020   03:21:12   (  68.95, 129.16) 09/17/2020   03:21:17  (  68.94, 129.15)    0.87                 5
 09/17/2020   04:11:53   ( -68.85, -63.38) 09/17/2020   04:10:47  ( -68.84, -63.35)    1.49                66
 09/19/2020   18:47:01   ( -69.61,  76.84) 09/19/2020   18:48:11  ( -69.48,  78.08)   50.40                70
 09/19/2020   19:37:35   (  68.96,-114.94) 09/19/2020   19:37:45  (  68.97,-114.94)    0.94                10
 09/19/2020   20:28:16   ( -68.86,  52.52) 09/19/2020   20:27:15  ( -68.87,  52.57)    2.49                61