Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 12 2.  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)
 12/02/2019   15:04:31   (  68.87, -47.16) 12/02/2019   15:05:36  (  68.87, -47.10)    2.41                65
 12/02/2019   15:55:12   ( -68.73, 120.35) 12/02/2019   15:55:07  ( -68.70, 120.33)    3.34                 5
 12/02/2019   16:45:50   (  68.33, -71.81) 12/02/2019   16:44:38  (  68.38, -72.43)   26.25                72
 12/05/2019   07:20:56   (  68.84,  68.78) 12/05/2019   07:22:05  (  68.87,  68.78)    3.30                69
 12/05/2019   08:11:37   ( -68.71,-123.72) 12/05/2019   08:11:36  ( -68.70,-123.79)    2.85                 1
 12/05/2019   09:02:18   (  68.46,  43.91) 12/05/2019   09:01:05  (  68.49,  43.58)   13.84                73
 12/07/2019   23:37:23   (  68.92,-175.44) 12/07/2019   23:38:33  (  68.92,-175.28)    6.52                70
 12/08/2019   00:28:03   ( -68.74,  -7.87) 12/08/2019   00:28:04  ( -68.75,  -7.85)    2.23                 1
 12/08/2019   01:18:45   (  68.54, 159.70) 12/08/2019   01:17:32  (  68.59, 159.59)    7.03                73
 12/10/2019   15:53:49   (  69.00, -59.66) 12/10/2019   15:55:00  (  68.96, -59.34)   13.47                71
 12/10/2019   16:44:28   ( -68.77, 107.99) 12/10/2019   16:44:32  ( -68.74, 108.02)    2.64                 4
 12/10/2019   17:35:11   (  68.62, -84.51) 12/10/2019   17:33:59  (  68.63, -84.47)    1.84                72
 12/13/2019   08:10:16   (  69.09,  56.13) 12/13/2019   08:11:28  (  69.00,  56.59)   20.94                72
 12/13/2019   09:00:53   ( -68.74,-136.09) 12/13/2019   09:01:01  ( -68.73,-136.12)    2.08                 8
 12/13/2019   09:51:36   (  68.60,  31.42) 12/13/2019   09:50:28  (  68.62,  31.39)    2.09                68
 12/16/2019   00:26:44   (  69.23, 171.83) 12/16/2019   00:27:55  (  69.09, 172.59)   33.64                71
 12/16/2019   01:17:19   ( -68.78, -20.23) 12/16/2019   01:17:29  ( -68.76, -20.19)    2.14                10
 12/16/2019   02:08:02   (  68.63, 147.27) 12/16/2019   02:06:56  (  68.65, 147.31)    2.54                66