Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 23.  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)
 05/24/2020   20:13:49   (  68.90,-124.28) 05/24/2020   20:14:54  (  68.89,-124.33)    2.42                65
 05/24/2020   21:04:30   ( -68.81,  43.16) 05/24/2020   21:04:23  ( -68.83,  43.23)    3.11                 7
 05/24/2020   21:55:08   (  68.36,-148.93) 05/24/2020   21:53:56  (  68.39,-149.67)   30.50                72
 05/27/2020   12:30:13   (  68.92,  -8.40) 05/27/2020   12:31:22  (  68.92,  -8.41)    0.70                69
 05/27/2020   13:20:54   ( -68.83, 159.05) 05/27/2020   13:20:52  ( -68.81, 159.08)    3.05                 2
 05/27/2020   14:11:34   (  68.49, -33.19) 05/27/2020   14:10:22  (  68.53, -33.61)   18.02                72
 05/30/2020   04:46:38   (  69.00, 107.41) 05/30/2020   04:47:49  (  68.99, 107.57)    6.48                71
 05/30/2020   05:37:18   ( -68.85, -85.07) 05/30/2020   05:37:20  ( -68.83, -85.00)    3.23                 2
 05/30/2020   06:28:01   (  68.67,  82.48) 05/30/2020   06:26:48  (  68.66,  82.43)    2.07                73
 06/01/2020   21:03:05   (  69.18,-136.94) 06/01/2020   21:04:15  (  69.12,-136.38)   23.04                70
 06/01/2020   21:53:41   ( -68.81,  30.89) 06/01/2020   21:53:49  ( -68.79,  30.83)    3.40                 8
 06/01/2020   22:44:25   (  68.70,-161.64) 06/01/2020   22:43:16  (  68.68,-161.66)    2.29                69
 06/04/2020   13:19:30   (  69.31, -21.22) 06/04/2020   13:20:41  (  69.18, -20.42)   34.73                71
 06/04/2020   14:10:04   ( -68.84, 146.77) 06/04/2020   14:10:15  ( -68.86, 146.80)    2.80                11
 06/04/2020   15:00:48   (  68.72, -45.77) 06/04/2020   14:59:42  (  68.74, -45.70)    3.39                66