Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 6 4.  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)
 06/06/2019   03:01:51   (  68.98, 133.53) 06/06/2019   03:03:02  (  68.95, 133.72)    8.26                71
 06/06/2019   03:52:30   ( -68.76, -58.85) 06/06/2019   03:52:33  ( -68.78, -58.86)    2.74                 3
 06/06/2019   04:43:13   (  68.60, 108.67) 06/06/2019   04:42:01  (  68.62, 108.58)    4.47                72
 06/08/2019   19:18:19   (  69.02,-110.65) 06/08/2019   19:19:30  (  68.96,-110.39)   12.73                71
 06/08/2019   20:08:58   ( -68.80,  56.98) 06/08/2019   20:09:01  ( -68.80,  57.04)    2.47                 3
 06/08/2019   20:59:41   (  68.64,-135.50) 06/08/2019   20:58:29  (  68.63,-135.53)    1.93                72
 06/11/2019   11:34:45   (  69.02,   5.25) 06/11/2019   11:35:57  (  68.96,   5.50)   11.73                72
 06/11/2019   12:25:24   ( -68.78, 172.88) 06/11/2019   12:25:29  ( -68.75, 172.87)    3.40                 5
 06/11/2019   13:16:07   (  68.63, -19.61) 06/11/2019   13:14:56  (  68.63, -19.64)    1.24                71
 06/14/2019   03:51:13   (  69.06, 121.07) 06/14/2019   03:52:24  (  69.02, 121.45)   16.19                71
 06/14/2019   04:41:51   ( -68.77, -71.21) 06/14/2019   04:41:57  ( -68.76, -71.24)    1.74                 6
 06/14/2019   05:32:34   (  68.63,  96.29) 06/14/2019   05:31:24  (  68.63,  96.25)    1.76                70
 06/16/2019   20:07:41   (  69.11,-123.12) 06/16/2019   20:08:52  (  69.02,-122.67)   20.70                71
 06/16/2019   20:58:18   ( -68.76,  44.69) 06/16/2019   20:58:25  ( -68.76,  44.64)    1.91                 7
 06/16/2019   21:49:01   (  68.62,-147.82) 06/16/2019   21:47:52  (  68.63,-147.87)    2.36                69