Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 16.  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   11:41:03   (  68.91,   3.89) 05/19/2020   11:41:58  (  68.88,   3.89)    2.92                55
 05/19/2020   12:31:43   ( -68.76, 171.41) 05/19/2020   12:31:28  ( -68.77, 171.38)    1.14                15
 05/19/2020   13:22:15   (  67.99, -20.28) 05/19/2020   13:21:06  (  68.05, -21.84)   65.53                69
 05/22/2020   03:57:27   (  68.93, 119.77) 05/22/2020   03:58:26  (  68.93, 119.83)    2.43                59
 05/22/2020   04:48:07   ( -68.78, -72.71) 05/22/2020   04:47:57  ( -68.76, -72.74)    2.48                10
 05/22/2020   05:38:42   (  68.17,  95.40) 05/22/2020   05:37:32  (  68.21,  94.23)   48.67                70
 05/24/2020   20:13:49   (  68.90,-124.28) 05/24/2020   20:14:54  (  68.92,-124.30)    2.20                65
 05/24/2020   21:04:30   ( -68.80,  43.18) 05/24/2020   21:04:24  ( -68.81,  43.20)    1.49                 6
 05/24/2020   21:55:08   (  68.36,-148.93) 05/24/2020   21:53:56  (  68.42,-149.64)   29.78                72
 05/27/2020   12:30:13   (  68.93,  -8.40) 05/27/2020   12:31:23  (  68.91,  -8.43)    2.62                70
 05/27/2020   13:20:54   ( -68.83, 159.06) 05/27/2020   13:20:53  ( -68.80, 159.07)    2.52                 1
 05/27/2020   14:11:35   (  68.55, -33.26) 05/27/2020   14:10:22  (  68.57, -33.57)   12.63                73
 05/30/2020   04:46:39   (  69.06, 107.32) 05/30/2020   04:47:50  (  69.00, 107.57)   12.09                71
 05/30/2020   05:37:17   ( -68.80, -85.00) 05/30/2020   05:37:22  ( -68.79, -85.06)    2.67                 5
 05/30/2020   06:28:01   (  68.68,  82.46) 05/30/2020   06:26:49  (  68.67,  82.44)    1.79                72