Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 6.  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   (  68.85, -99.67) 05/08/2020   18:36:04  (  68.84, -99.69)    2.01                36
 05/08/2020   19:26:08   ( -68.71,  67.85) 05/08/2020   19:25:34  ( -68.73,  67.80)    3.00                34
 05/11/2020   10:51:52   (  68.87,  16.22) 05/11/2020   10:52:33  (  68.84,  16.20)    3.32                41
 05/11/2020   11:42:32   ( -68.72,-176.26) 05/11/2020   11:42:03  ( -68.73,-176.31)    2.45                29
 05/14/2020   03:08:15   (  68.89, 132.11) 05/14/2020   03:09:00  (  68.89, 132.15)    1.83                45
 05/14/2020   03:58:55   ( -68.74, -60.37) 05/14/2020   03:58:31  ( -68.73, -60.42)    2.16                24
 05/16/2020   19:24:39   (  68.91,-112.01) 05/16/2020   19:25:29  (  68.89,-111.98)    2.45                50
 05/16/2020   20:15:19   ( -68.76,  55.51) 05/16/2020   20:15:00  ( -68.73,  55.46)    3.53                19
 05/16/2020   21:05:48   (  67.83,-135.98) 05/16/2020   21:04:40  (  67.89,-137.91)   81.19                68
 05/19/2020   11:41:02   (  68.88,   3.94) 05/19/2020   11:41:58  (  68.88,   3.89)    1.89                56
 05/19/2020   12:31:43   ( -68.78, 171.39) 05/19/2020   12:31:28  ( -68.78, 171.40)    0.41                15
 05/19/2020   13:22:15   (  68.01, -20.30) 05/19/2020   13:21:06  (  68.05, -21.85)   64.26                69