Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 11.  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)
 05/11/2020   10:51:51   (  68.84,  16.26) 05/11/2020   10:52:32  (  68.86,  16.22)    2.49                41
 05/11/2020   11:42:32   ( -68.75,-176.30) 05/11/2020   11:42:02  ( -68.75,-176.29)    0.83                30
 05/14/2020   03:08:15   (  68.85, 132.15) 05/14/2020   03:09:01  (  68.86, 132.10)    2.13                46
 05/14/2020   03:58:56   ( -68.76, -60.40) 05/14/2020   03:58:31  ( -68.75, -60.40)    1.05                25
 05/16/2020   19:24:39   (  68.87,-111.96) 05/16/2020   19:25:30  (  68.86,-112.01)    2.23                51
 05/16/2020   20:15:20   ( -68.77,  55.49) 05/16/2020   20:15:00  ( -68.76,  55.49)    1.60                20
 05/16/2020   21:05:49   (  67.84,-136.00) 05/16/2020   21:04:41  (  67.86,-137.94)   81.62                68
 05/19/2020   11:41:02   (  68.88,   3.93) 05/19/2020   11:41:58  (  68.86,   3.87)    3.09                56
 05/19/2020   12:31:43   ( -68.78, 171.38) 05/19/2020   12:31:28  ( -68.76, 171.37)    2.47                15
 05/19/2020   13:22:15   (  68.02, -20.31) 05/19/2020   13:21:06  (  68.03, -21.87)   64.89                69
 05/22/2020   03:57:26   (  68.89, 119.82) 05/22/2020   03:58:26  (  68.92, 119.82)    2.70                60
 05/22/2020   04:48:07   ( -68.79, -72.72) 05/22/2020   04:47:56  ( -68.82, -72.68)    3.28                11
 05/22/2020   05:38:42   (  68.19,  95.38) 05/22/2020   05:37:31  (  68.25,  94.28)   45.85                71
 05/24/2020   20:13:50   (  68.91,-124.29) 05/24/2020   20:14:55  (  68.92,-124.30)    0.80                65
 05/24/2020   21:04:31   ( -68.81,  43.17) 05/24/2020   21:04:25  ( -68.82,  43.21)    1.98                 6
 05/24/2020   21:55:09   (  68.37,-148.94) 05/24/2020   21:53:57  (  68.42,-149.64)   29.15                72