Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 6 10.  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)
 06/11/2019   11:34:45   (  69.02,   5.24) 06/11/2019   11:35:57  (  68.95,   5.49)   12.45                72
 06/11/2019   12:25:24   ( -68.79, 172.87) 06/11/2019   12:25:28  ( -68.79, 172.91)    1.62                 4
 06/11/2019   13:16:07   (  68.64, -19.61) 06/11/2019   13:14:56  (  68.62, -19.65)    2.42                71
 06/14/2019   03:51:13   (  69.07, 121.06) 06/14/2019   03:52:24  (  69.00, 121.44)   16.72                71
 06/14/2019   04:41:51   ( -68.78, -71.23) 06/14/2019   04:41:56  ( -68.79, -71.20)    1.48                 5
 06/14/2019   05:32:34   (  68.63,  96.28) 06/14/2019   05:31:24  (  68.62,  96.23)    2.45                70
 06/16/2019   20:07:40   (  69.07,-123.05) 06/16/2019   20:08:52  (  69.00,-122.69)   16.41                72
 06/16/2019   20:58:18   ( -68.77,  44.67) 06/16/2019   20:58:24  ( -68.79,  44.68)    2.08                 6
 06/16/2019   21:49:01   (  68.63,-147.83) 06/16/2019   21:47:52  (  68.61,-147.89)    2.98                69
 06/19/2019   12:24:08   (  69.12,  -7.24) 06/19/2019   12:25:19  (  69.05,  -6.74)   21.38                71
 06/19/2019   13:14:45   ( -68.76, 160.56) 06/19/2019   13:14:52  ( -68.78, 160.55)    2.36                 7
 06/19/2019   14:05:28   (  68.63, -31.95) 06/19/2019   14:04:19  (  68.66, -31.95)    3.52                69
 06/22/2019   04:40:34   (  69.12, 108.64) 06/22/2019   04:41:46  (  69.03, 109.12)   21.37                72
 06/22/2019   05:31:11   ( -68.76, -83.54) 06/22/2019   05:31:19  ( -68.77, -83.57)    2.26                 8
 06/22/2019   06:21:54   (  68.63,  83.94) 06/22/2019   06:20:46  (  68.65,  83.92)    2.20                68