Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 5 29.  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   18:28:56   (  68.91, -98.14) 05/31/2019   18:30:07  (  68.90, -98.10)    1.35                71
 05/31/2019   19:19:37   ( -68.80,  69.33) 05/31/2019   19:19:37  ( -68.79,  69.39)    2.58                 0
 05/31/2019   20:10:18   (  68.57,-123.07) 05/31/2019   20:09:05  (  68.57,-123.24)    6.97                73
 06/03/2019   10:45:23   (  68.95,  17.68) 06/03/2019   10:46:34  (  68.91,  17.79)    6.08                71
 06/03/2019   11:36:03   ( -68.78,-174.77) 06/03/2019   11:36:04  ( -68.81,-174.71)    3.30                 1
 06/03/2019   12:26:45   (  68.57,  -7.17) 06/03/2019   12:25:33  (  68.58,  -7.34)    7.14                72
 06/06/2019   03:01:50   (  68.95, 133.57) 06/06/2019   03:03:02  (  68.92, 133.68)    5.42                72
 06/06/2019   03:52:30   ( -68.77, -58.87) 06/06/2019   03:52:33  ( -68.76, -58.89)    2.03                 3
 06/06/2019   04:43:13   (  68.62, 108.65) 06/06/2019   04:42:00  (  68.64, 108.61)    2.94                73
 06/08/2019   19:18:18   (  69.00,-110.61) 06/08/2019   19:19:29  (  68.97,-110.37)   10.15                71
 06/08/2019   20:08:57   ( -68.77,  57.02) 06/08/2019   20:09:01  ( -68.76,  56.99)    1.52                 4
 06/08/2019   20:59:40   (  68.62,-135.47) 06/08/2019   20:58:28  (  68.64,-135.51)    2.93                72
 06/11/2019   11:34:45   (  69.00,   5.27) 06/11/2019   11:35:57  (  68.96,   5.50)   10.18                72
 06/11/2019   12:25:23   ( -68.76, 172.91) 06/11/2019   12:25:28  ( -68.75, 172.87)    2.10                 5
 06/11/2019   13:16:06   (  68.62, -19.58) 06/11/2019   13:14:55  (  68.63, -19.64)    2.52                71