Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 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)
 05/08/2020   18:35:28   (  68.87, -99.69) 05/08/2020   18:36:03  (  68.87, -99.64)    1.85                35
 05/08/2020   19:26:08   ( -68.72,  67.83) 05/08/2020   19:25:34  ( -68.71,  67.78)    2.91                34
 05/11/2020   10:51:52   (  68.88,  16.20) 05/11/2020   10:52:32  (  68.87,  16.24)    1.70                40
 05/11/2020   11:42:32   ( -68.74,-176.28) 05/11/2020   11:42:02  ( -68.77,-176.26)    3.29                30
 05/14/2020   03:08:16   (  68.90, 132.09) 05/14/2020   03:09:01  (  68.87, 132.11)    3.21                45
 05/14/2020   03:58:56   ( -68.75, -60.39) 05/14/2020   03:58:31  ( -68.76, -60.39)    1.61                25
 05/16/2020   19:24:38   (  68.86,-111.95) 05/16/2020   19:25:29  (  68.86,-112.02)    2.81                51
 05/16/2020   20:15:19   ( -68.76,  55.50) 05/16/2020   20:14:59  ( -68.75,  55.49)    1.13                20
 05/16/2020   21:05:47   (  67.78,-135.92) 05/16/2020   21:04:40  (  67.86,-137.95)   85.50                67
 05/19/2020   11:41:02   (  68.88,   3.94) 05/19/2020   11:41:57  (  68.90,   3.91)    2.28                55
 05/19/2020   12:31:43   ( -68.78, 171.39) 05/19/2020   12:31:27  ( -68.80, 171.42)    2.23                16
 05/19/2020   13:22:14   (  67.96, -20.24) 05/19/2020   13:21:06  (  68.01, -21.89)   69.15                68
 05/22/2020   03:57:26   (  68.90, 119.82) 05/22/2020   03:58:26  (  68.87, 119.77)    3.43                60