Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 7 28.  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)
 07/28/2020   04:28:32   (  68.93, 112.19) 07/28/2020   04:29:18  (  68.95, 112.17)    2.49                46
 07/28/2020   05:19:14   ( -68.84, -80.37) 07/28/2020   05:18:48  ( -68.84, -80.34)    1.22                26
 07/30/2020   20:44:56   (  68.98,-131.96) 07/30/2020   20:45:47  (  68.96,-131.94)    2.17                51
 07/30/2020   21:35:37   ( -68.83,  35.55) 07/30/2020   21:35:17  ( -68.85,  35.55)    1.57                20
 07/30/2020   22:26:05   (  67.90,-155.92) 07/30/2020   22:24:58  (  67.96,-157.88)   82.24                67
 08/02/2020   13:01:19   (  68.97, -16.04) 08/02/2020   13:02:16  (  68.96, -16.06)    1.11                57
 08/02/2020   13:52:01   ( -68.88, 151.40) 08/02/2020   13:51:46  ( -68.86, 151.44)    3.10                15
 08/02/2020   14:42:32   (  68.11, -40.27) 08/02/2020   14:41:23  (  68.19, -41.73)   61.10                69
 08/05/2020   05:17:42   (  68.97,  99.88) 08/05/2020   05:18:45  (  68.96,  99.82)    2.18                63
 08/05/2020   06:08:24   ( -68.87, -92.68) 08/05/2020   06:08:15  ( -68.86, -92.67)    1.55                 9
 08/05/2020   06:58:59   (  68.32,  75.37) 08/05/2020   06:57:48  (  68.41,  74.42)   40.46                71
 08/07/2020   21:34:05   (  69.01,-144.27) 08/07/2020   21:35:12  (  69.02,-144.23)    2.00                67
 08/07/2020   22:24:46   ( -68.87,  23.24) 08/07/2020   22:24:43  ( -68.86,  23.21)    1.65                 3
 08/07/2020   23:15:25   (  68.53,-168.99) 08/07/2020   23:14:13  (  68.58,-169.50)   21.40                72
 08/10/2020   13:50:29   (  69.06, -28.43) 08/10/2020   13:51:40  (  69.07, -28.28)    5.99                71
 08/10/2020   14:41:10   ( -68.92, 139.09) 08/10/2020   14:41:11  ( -68.91, 139.15)    2.74                 1
 08/10/2020   15:31:52   (  68.74, -53.36) 08/10/2020   15:30:39  (  68.74, -53.42)    2.44                73