Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 9.  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   10:51:52   (  68.89,  16.19) 05/11/2020   10:52:32  (  68.86,  16.23)    3.05                40
 05/11/2020   11:42:32   ( -68.74,-176.29) 05/11/2020   11:42:02  ( -68.76,-176.28)    1.27                30
 05/14/2020   03:08:15   (  68.85, 132.16) 05/14/2020   03:09:01  (  68.86, 132.10)    2.72                46
 05/14/2020   03:58:56   ( -68.75, -60.39) 05/14/2020   03:58:31  ( -68.75, -60.40)    0.16                25
 05/16/2020   19:24:40   (  68.91,-112.02) 05/16/2020   19:25:29  (  68.91,-111.96)    2.67                49
 05/16/2020   20:15:20   ( -68.76,  55.50) 05/16/2020   20:15:00  ( -68.75,  55.48)    2.12                20
 05/16/2020   21:05:48   (  67.78,-135.92) 05/16/2020   21:04:41  (  67.85,-137.96)   85.80                67
 05/19/2020   11:41:02   (  68.87,   3.94) 05/19/2020   11:41:57  (  68.89,   3.90)    2.46                55
 05/19/2020   12:31:43   ( -68.77, 171.40) 05/19/2020   12:31:27  ( -68.79, 171.41)    1.75                16
 05/19/2020   13:22:14   (  67.95, -20.23) 05/19/2020   13:21:06  (  68.00, -21.90)   69.72                68
 05/22/2020   03:57:27   (  68.94, 119.76) 05/22/2020   03:58:25  (  68.92, 119.83)    3.41                58
 05/22/2020   04:48:07   ( -68.79, -72.71) 05/22/2020   04:47:56  ( -68.77, -72.73)    2.00                11
 05/22/2020   05:38:41   (  68.13,  95.45) 05/22/2020   05:37:31  (  68.20,  94.22)   51.64                70