Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 10 9.  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)
 10/10/2019   00:45:22   ( -69.25, -12.84) 10/10/2019   00:46:33  ( -69.17, -12.03)   33.13                71
 10/10/2019   01:35:59   (  68.76, 155.13) 10/10/2019   01:36:05  (  68.79, 155.13)    2.33                 6
 10/10/2019   02:26:40   ( -68.65, -37.40) 10/10/2019   02:25:35  ( -68.68, -37.38)    2.75                65
 10/12/2019   17:01:49   ( -69.34, 102.91) 10/12/2019   17:03:00  ( -69.21, 103.91)   41.74                71
 10/12/2019   17:52:24   (  68.76, -88.98) 10/12/2019   17:52:33  (  68.77, -89.01)    1.60                 9
 10/12/2019   18:43:05   ( -68.64,  78.50) 10/12/2019   18:42:03  ( -68.66,  78.49)    2.12                62
 10/15/2019   09:18:17   ( -69.45,-141.34) 10/15/2019   09:19:27  ( -69.31,-140.09)   51.26                70
 10/15/2019   10:08:51   (  68.82,  26.84) 10/15/2019   10:09:01  (  68.81,  26.91)    3.17                10
 10/15/2019   10:59:31   ( -68.64,-165.60) 10/15/2019   10:58:32  ( -68.65,-165.66)    2.34                59
 10/18/2019   01:34:45   ( -69.55, -25.60) 10/18/2019   01:35:54  ( -69.40, -24.10)   61.05                69
 10/18/2019   02:25:16   (  68.77, 142.80) 10/18/2019   02:25:30  (  68.78, 142.76)    2.13                14
 10/18/2019   03:15:58   ( -68.69, -49.78) 10/18/2019   03:15:00  ( -68.68, -49.74)    2.05                58
 10/20/2019   17:51:12   ( -69.60,  90.21) 10/20/2019   17:52:21  ( -69.49,  91.90)   66.82                69
 10/20/2019   18:41:43   (  68.83,-101.39) 10/20/2019   18:41:58  (  68.81,-101.33)    3.33                15
 10/20/2019   19:32:23   ( -68.64,  66.18) 10/20/2019   19:31:29  ( -68.66,  66.11)    3.57                54