Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 22.  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)
 05/22/2020   05:38:41   (  68.16,  95.42) 05/22/2020   05:37:31  (  68.21,  94.23)   49.30                70
 05/24/2020   20:13:49   (  68.89,-124.26) 05/24/2020   20:14:54  (  68.91,-124.30)    3.10                65
 05/24/2020   21:04:30   ( -68.80,  43.18) 05/24/2020   21:04:24  ( -68.80,  43.19)    0.26                 6
 05/24/2020   21:55:08   (  68.35,-148.91) 05/24/2020   21:53:56  (  68.41,-149.64)   30.85                72
 05/27/2020   12:30:13   (  68.91,  -8.38) 05/27/2020   12:31:22  (  68.94,  -8.38)    3.42                69
 05/27/2020   13:20:54   ( -68.82, 159.07) 05/27/2020   13:20:52  ( -68.83, 159.12)    2.53                 2
 05/27/2020   14:11:34   (  68.48, -33.17) 05/27/2020   14:10:22  (  68.56, -33.58)   18.80                72
 05/30/2020   04:46:39   (  69.04, 107.35) 05/30/2020   04:47:49  (  69.02, 107.61)   10.76                70
 05/30/2020   05:37:17   ( -68.79, -84.98) 05/30/2020   05:37:21  ( -68.81, -85.03)    3.14                 4
 05/30/2020   06:28:01   (  68.67,  82.49) 05/30/2020   06:26:48  (  68.69,  82.47)    3.29                73
 06/01/2020   21:03:04   (  69.18,-136.93) 06/01/2020   21:04:15  (  69.10,-136.40)   22.56                71
 06/01/2020   21:53:40   ( -68.81,  30.90) 06/01/2020   21:53:48  ( -68.83,  30.89)    2.78                 8
 06/01/2020   22:44:24   (  68.69,-161.64) 06/01/2020   22:43:15  (  68.72,-161.62)    2.81                69
 06/04/2020   13:19:31   (  69.37, -21.29) 06/04/2020   13:20:41  (  69.23, -20.35)   39.98                70
 06/04/2020   14:10:04   ( -68.84, 146.77) 06/04/2020   14:10:16  ( -68.86, 146.80)    2.56                12
 06/04/2020   15:00:48   (  68.73, -45.77) 06/04/2020   14:59:43  (  68.74, -45.71)    2.86                65