Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 17.  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)
 05/19/2020   11:41:02   (  68.88,   3.93) 05/19/2020   11:41:57  (  68.91,   3.93)    3.06                55
 05/19/2020   12:31:43   ( -68.79, 171.37) 05/19/2020   12:31:27  ( -68.79, 171.42)    1.80                16
 05/19/2020   13:22:15   (  68.02, -20.31) 05/19/2020   13:21:06  (  68.02, -21.88)   65.26                69
 05/22/2020   03:57:26   (  68.90, 119.81) 05/22/2020   03:58:26  (  68.90, 119.79)    0.84                60
 05/22/2020   04:48:07   ( -68.81, -72.74) 05/22/2020   04:47:56  ( -68.79, -72.71)    3.01                11
 05/22/2020   05:38:41   (  68.15,  95.43) 05/22/2020   05:37:31  (  68.23,  94.26)   49.65                70
 05/24/2020   20:13:50   (  68.93,-124.31) 05/24/2020   20:14:54  (  68.94,-124.27)    2.25                64
 05/24/2020   21:04:30   ( -68.78,  43.21) 05/24/2020   21:04:25  ( -68.78,  43.16)    2.03                 5
 05/24/2020   21:55:08   (  68.33,-148.89) 05/24/2020   21:53:57  (  68.39,-149.68)   32.65                71
 05/27/2020   12:30:13   (  68.90,  -8.37) 05/27/2020   12:31:23  (  68.92,  -8.41)    3.02                70
 05/27/2020   13:20:54   ( -68.80, 159.09) 05/27/2020   13:20:53  ( -68.82, 159.10)    2.11                 1
 05/27/2020   14:11:34   (  68.52, -33.23) 05/27/2020   14:10:21  (  68.59, -33.54)   14.95                73
 05/30/2020   04:46:38   (  69.04, 107.35) 05/30/2020   04:47:49  (  69.02, 107.59)    9.80                71
 05/30/2020   05:37:17   ( -68.83, -85.04) 05/30/2020   05:37:21  ( -68.81, -85.04)    2.42                 4
 05/30/2020   06:28:01   (  68.71,  82.43) 05/30/2020   06:26:48  (  68.69,  82.46)    3.16                73