Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 10 25.  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)
 10/26/2019   02:24:07   ( -69.81, -38.31) 10/26/2019   02:25:14  ( -69.73, -35.97)   90.44                67
 10/26/2019   03:14:33   (  68.77, 130.47) 10/26/2019   03:14:56  (  68.79, 130.45)    2.94                23
 10/26/2019   04:05:15   ( -68.69, -62.10) 10/26/2019   04:04:26  ( -68.69, -62.05)    1.94                49
 10/28/2019   19:30:59   (  68.78,-113.65) 10/28/2019   19:31:25  (  68.81,-113.65)    3.58                26
 10/28/2019   20:21:41   ( -68.69,  53.79) 10/28/2019   20:20:55  ( -68.71,  53.85)    3.34                46
 10/31/2019   11:47:25   (  68.79,   2.22) 10/31/2019   11:47:55  (  68.78,   2.18)    2.29                30
 10/31/2019   12:38:07   ( -68.70, 169.67) 10/31/2019   12:37:25  ( -68.68, 169.69)    2.23                42
 11/03/2019   04:03:50   (  68.81, 118.10) 11/03/2019   04:04:23  (  68.81, 118.09)    0.17                33
 11/03/2019   04:54:32   ( -68.71, -74.45) 11/03/2019   04:53:53  ( -68.71, -74.39)    2.39                39
 11/05/2019   20:20:16   (  68.82,-126.04) 11/05/2019   20:20:52  (  68.84,-125.99)    2.48                36
 11/05/2019   21:10:57   ( -68.67,  41.49) 11/05/2019   21:10:23  ( -68.69,  41.46)    2.73                34