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   (  68.88,-124.26) 05/24/2020   20:14:54  (  68.91,-124.31)    3.32                65
 05/24/2020   21:04:30   ( -68.80,  43.19) 05/24/2020   21:04:24  ( -68.79,  43.18)    0.36                 6
 05/24/2020   21:55:08   (  68.34,-148.91) 05/24/2020   21:53:56  (  68.41,-149.64)   31.02                72
 05/27/2020   12:30:13   (  68.91,  -8.38) 05/27/2020   12:31:22  (  68.94,  -8.38)    3.31                69
 05/27/2020   13:20:54   ( -68.82, 159.07) 05/27/2020   13:20:52  ( -68.83, 159.11)    2.01                 2
 05/27/2020   14:11:34   (  68.48, -33.17) 05/27/2020   14:10:22  (  68.55, -33.59)   19.00                72
 05/30/2020   04:46:38   (  68.99, 107.42) 05/30/2020   04:47:50  (  68.96, 107.53)    5.18                72
 05/30/2020   05:37:17   ( -68.79, -84.98) 05/30/2020   05:37:21  ( -68.80, -85.04)    2.98                 4
 05/30/2020   06:28:01   (  68.66,  82.49) 05/30/2020   06:26:48  (  68.69,  82.46)    2.90                73
 06/01/2020   21:03:04   (  69.18,-136.93) 06/01/2020   21:04:15  (  69.09,-136.42)   22.29                71
 06/01/2020   21:53:40   ( -68.81,  30.90) 06/01/2020   21:53:48  ( -68.82,  30.87)    1.81                 8
 06/01/2020   22:44:24   (  68.69,-161.64) 06/01/2020   22:43:15  (  68.70,-161.63)    1.48                69
 06/04/2020   13:19:30   (  69.31, -21.21) 06/04/2020   13:20:41  (  69.21, -20.38)   34.73                71
 06/04/2020   14:10:04   ( -68.83, 146.77) 06/04/2020   14:10:16  ( -68.84, 146.77)    0.25                12
 06/04/2020   15:00:48   (  68.72, -45.77) 06/04/2020   14:59:43  (  68.72, -45.73)    1.52                65