Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 7 25.  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)
 07/25/2020   12:12:09   (  68.90,  -3.68) 07/25/2020   12:12:50  (  68.92,  -3.75)    3.22                41
 07/25/2020   13:02:51   ( -68.81, 163.75) 07/25/2020   13:02:20  ( -68.80, 163.74)    1.12                31
 07/28/2020   04:28:33   (  68.95, 112.16) 07/28/2020   04:29:19  (  68.93, 112.14)    2.56                46
 07/28/2020   05:19:14   ( -68.80, -80.32) 07/28/2020   05:18:49  ( -68.82, -80.36)    2.25                25
 07/30/2020   20:44:55   (  68.94,-131.92) 07/30/2020   20:45:47  (  68.93,-131.97)    2.62                52
 07/30/2020   21:35:37   ( -68.85,  35.53) 07/30/2020   21:35:17  ( -68.83,  35.52)    2.81                20
 07/30/2020   22:26:05   (  67.92,-155.95) 07/30/2020   22:24:57  (  67.99,-157.85)   79.58                68
 08/02/2020   13:01:19   (  68.99, -16.07) 08/02/2020   13:02:15  (  68.99, -16.02)    1.95                56
 08/02/2020   13:52:00   ( -68.84, 151.45) 08/02/2020   13:51:46  ( -68.83, 151.41)    2.51                14
 08/02/2020   14:42:32   (  68.13, -40.30) 08/02/2020   14:41:23  (  68.15, -41.77)   60.84                69
 08/05/2020   05:17:42   (  68.99,  99.85) 08/05/2020   05:18:44  (  68.98,  99.85)    0.78                62
 08/05/2020   06:08:24   ( -68.89, -92.70) 08/05/2020   06:08:14  ( -68.88, -92.65)    2.79                10
 08/05/2020   06:58:59   (  68.34,  75.34) 08/05/2020   06:57:48  (  68.37,  74.37)   39.90                71
 08/07/2020   21:34:05   (  68.98,-144.23) 08/07/2020   21:35:13  (  68.97,-144.28)    2.61                68
 08/07/2020   22:24:47   ( -68.89,  23.21) 08/07/2020   22:24:43  ( -68.87,  23.22)    2.17                 4
 08/07/2020   23:15:25   (  68.50,-168.95) 08/07/2020   23:14:13  (  68.58,-169.49)   23.78                72