Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 10 6.  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)
 10/07/2019   08:28:55   ( -69.19,-128.65) 10/07/2019   08:30:06  ( -69.07,-128.03)   27.73                71
 10/07/2019   09:19:33   (  68.76,  39.25) 10/07/2019   09:19:37  (  68.75,  39.20)    2.18                 4
 10/07/2019   10:10:14   ( -68.65,-153.28) 10/07/2019   10:09:07  ( -68.63,-153.30)    1.55                67
 10/10/2019   00:45:22   ( -69.22, -12.81) 10/10/2019   00:46:34  ( -69.11, -12.10)   30.84                72
 10/10/2019   01:36:00   (  68.80, 155.08) 10/10/2019   01:36:05  (  68.78, 155.13)    2.93                 5
 10/10/2019   02:26:41   ( -68.68, -37.44) 10/10/2019   02:25:35  ( -68.67, -37.37)    3.06                66
 10/12/2019   17:01:49   ( -69.32, 102.95) 10/12/2019   17:03:00  ( -69.20, 103.90)   39.34                71
 10/12/2019   17:52:25   (  68.79, -89.02) 10/12/2019   17:52:32  (  68.81, -88.96)    3.29                 7
 10/12/2019   18:43:06   ( -68.67,  78.47) 10/12/2019   18:42:03  ( -68.65,  78.48)    1.90                63
 10/15/2019   09:18:17   ( -69.41,-141.29) 10/15/2019   09:19:27  ( -69.29,-140.12)   48.00                70
 10/15/2019   10:08:51   (  68.79,  26.88) 10/15/2019   10:09:01  (  68.78,  26.88)    0.53                10
 10/15/2019   10:59:32   ( -68.66,-165.63) 10/15/2019   10:58:31  ( -68.68,-165.61)    2.83                61
 10/18/2019   01:34:44   ( -69.45, -25.46) 10/18/2019   01:35:54  ( -69.36, -24.14)   52.46                70
 10/18/2019   02:25:17   (  68.78, 142.78) 10/18/2019   02:25:29  (  68.80, 142.78)    2.24                12
 10/18/2019   03:15:58   ( -68.64, -49.72) 10/18/2019   03:15:00  ( -68.65, -49.78)    2.40                58