Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 14.  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)
 09/14/2020   10:14:08   ( -69.22,-154.44) 09/14/2020   10:15:19  ( -69.18,-154.07)   15.28                71
 09/14/2020   11:04:49   (  68.94,  13.26) 09/14/2020   11:04:49  (  68.91,  13.23)    3.30                 0
 09/14/2020   11:55:29   ( -68.80,-179.22) 09/14/2020   11:54:19  ( -68.80,-179.28)    2.58                70
 09/17/2020   02:30:34   ( -69.40, -38.77) 09/17/2020   02:31:46  ( -69.28, -38.07)   30.87                72
 09/17/2020   03:21:12   (  68.96, 129.15) 09/17/2020   03:21:17  (  68.95, 129.16)    0.86                 5
 09/17/2020   04:11:52   ( -68.81, -63.33) 09/17/2020   04:10:47  ( -68.84, -63.35)    3.32                65
 09/19/2020   18:47:01   ( -69.63,  76.81) 09/19/2020   18:48:11  ( -69.49,  78.09)   52.19                70
 09/19/2020   19:37:35   (  68.98,-114.96) 09/19/2020   19:37:45  (  68.99,-114.91)    2.26                10
 09/19/2020   20:28:15   ( -68.83,  52.56) 09/19/2020   20:27:16  ( -68.83,  52.51)    2.10                59
 09/22/2020   11:03:27   ( -69.80,-167.54) 09/22/2020   11:04:35  ( -69.75,-165.68)   71.88                68
 09/22/2020   11:53:58   (  69.00,   0.92) 09/22/2020   11:54:14  (  68.97,   0.94)    3.16                16
 09/22/2020   12:44:38   ( -68.85, 168.45) 09/22/2020   12:43:44  ( -68.87, 168.44)    2.41                54
 09/25/2020   03:19:53   ( -70.03, -51.97) 09/25/2020   03:20:59  ( -69.95, -49.51)   94.07                66
 09/25/2020   04:10:20   (  69.02, 116.81) 09/25/2020   04:10:41  (  69.01, 116.87)    2.85                21
 09/25/2020   05:01:00   ( -68.87, -75.66) 09/25/2020   05:00:12  ( -68.85, -75.69)    1.97                48
 09/27/2020   20:26:42   (  68.99,-127.24) 09/27/2020   20:27:10  (  68.99,-127.27)    1.47                28
 09/27/2020   21:17:23   ( -68.89,  40.23) 09/27/2020   21:16:40  ( -68.89,  40.24)    0.92                43