Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 5 31.  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)
 05/31/2019   18:28:55   (  68.88, -98.11) 05/31/2019   18:30:07  (  68.87, -98.14)    2.05                72
 05/31/2019   19:19:36   ( -68.78,  69.35) 05/31/2019   19:19:37  ( -68.76,  69.35)    2.31                 1
 05/31/2019   20:10:18   (  68.55,-123.04) 05/31/2019   20:09:05  (  68.60,-123.21)    8.33                73
 06/03/2019   10:45:23   (  68.93,  17.72) 06/03/2019   10:46:34  (  68.94,  17.83)    4.72                71
 06/03/2019   11:36:03   ( -68.76,-174.74) 06/03/2019   11:36:05  ( -68.78,-174.74)    1.65                 2
 06/03/2019   12:26:46   (  68.60,  -7.21) 06/03/2019   12:25:33  (  68.61,  -7.31)    4.12                73
 06/06/2019   03:01:51   (  68.97, 133.54) 06/06/2019   03:03:02  (  68.95, 133.72)    7.82                71
 06/06/2019   03:52:31   ( -68.80, -58.91) 06/06/2019   03:52:33  ( -68.79, -58.84)    2.86                 2
 06/06/2019   04:43:14   (  68.64, 108.61) 06/06/2019   04:42:01  (  68.62, 108.59)    2.65                73
 06/08/2019   19:18:18   (  69.02,-110.64) 06/08/2019   19:19:29  (  68.96,-110.39)   12.44                71
 06/08/2019   20:08:57   ( -68.79,  56.99) 06/08/2019   20:09:00  ( -68.80,  57.05)    2.88                 3
 06/08/2019   20:59:40   (  68.64,-135.50) 06/08/2019   20:58:28  (  68.63,-135.52)    1.48                72
 06/11/2019   11:34:45   (  69.02,   5.24) 06/11/2019   11:35:57  (  68.96,   5.50)   11.91                72
 06/11/2019   12:25:24   ( -68.78, 172.89) 06/11/2019   12:25:29  ( -68.75, 172.87)    2.89                 5
 06/11/2019   13:16:07   (  68.63, -19.61) 06/11/2019   13:14:56  (  68.63, -19.64)    1.21                71