Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 10 28.  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)
 10/28/2019   19:30:59   (  68.75,-113.62) 10/28/2019   19:31:26  (  68.76,-113.69)    2.98                27
 10/28/2019   20:21:41   ( -68.67,  53.81) 10/28/2019   20:20:56  ( -68.66,  53.82)    0.93                45
 10/31/2019   11:47:24   (  68.76,   2.26) 10/31/2019   11:47:54  (  68.77,   2.20)    2.64                30
 10/31/2019   12:38:06   ( -68.67, 169.70) 10/31/2019   12:37:24  ( -68.67, 169.71)    0.38                42
 11/03/2019   04:03:50   (  68.77, 118.14) 11/03/2019   04:04:23  (  68.78, 118.09)    2.16                33
 11/03/2019   04:54:32   ( -68.67, -74.41) 11/03/2019   04:53:53  ( -68.68, -74.40)    0.97                39
 11/05/2019   20:20:16   (  68.78,-125.98) 11/05/2019   20:20:52  (  68.78,-126.02)    1.63                36
 11/05/2019   21:10:58   ( -68.68,  41.47) 11/05/2019   21:10:22  ( -68.69,  41.50)    1.20                36
 11/08/2019   12:36:42   (  68.79, -10.10) 11/08/2019   12:37:21  (  68.78, -10.13)    1.65                39
 11/08/2019   13:27:24   ( -68.69, 157.35) 11/08/2019   13:26:51  ( -68.69, 157.38)    1.18                33