Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 1.  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)
 08/02/2020   13:01:19   (  68.98, -16.05) 08/02/2020   13:02:16  (  68.97, -16.05)    0.91                57
 08/02/2020   13:52:00   ( -68.84, 151.46) 08/02/2020   13:51:46  ( -68.86, 151.44)    2.36                14
 08/02/2020   14:42:32   (  68.11, -40.28) 08/02/2020   14:41:23  (  68.19, -41.73)   60.54                69
 08/05/2020   05:17:42   (  68.97,  99.87) 08/05/2020   05:18:45  (  68.97,  99.84)    1.19                63
 08/05/2020   06:08:24   ( -68.89, -92.69) 08/05/2020   06:08:15  ( -68.87, -92.67)    2.58                 9
 08/05/2020   06:58:59   (  68.33,  75.36) 08/05/2020   06:57:48  (  68.42,  74.43)   39.54                71
 08/07/2020   21:34:04   (  68.97,-144.22) 08/07/2020   21:35:13  (  68.98,-144.27)    2.37                69
 08/07/2020   22:24:46   ( -68.89,  23.22) 08/07/2020   22:24:43  ( -68.87,  23.22)    1.31                 3
 08/07/2020   23:15:25   (  68.54,-169.01) 08/07/2020   23:14:13  (  68.59,-169.48)   20.04                72
 08/10/2020   13:50:29   (  69.08, -28.45) 08/10/2020   13:51:41  (  69.04, -28.32)    7.09                72
 08/10/2020   14:41:09   ( -68.89, 139.13) 08/10/2020   14:41:12  ( -68.88, 139.11)    1.02                 3
 08/10/2020   15:31:52   (  68.76, -53.38) 08/10/2020   15:30:39  (  68.77, -53.39)    0.97                73
 08/13/2020   06:06:56   (  69.30,  87.16) 08/13/2020   06:08:07  (  69.21,  87.78)   26.43                71
 08/13/2020   06:57:32   ( -68.89,-104.96) 08/13/2020   06:57:41  ( -68.89,-105.00)    1.76                 9
 08/13/2020   07:48:15   (  68.76,  62.53) 08/13/2020   07:47:08  (  68.77,  62.50)    1.66                67