Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 30.  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)
 04/30/2020   16:55:49   ( -69.80, 103.96) 04/30/2020   16:56:56  ( -69.72, 106.18)   85.96                67
 04/30/2020   17:46:17   (  68.83, -87.36) 04/30/2020   17:46:37  (  68.85, -87.32)    2.50                20
 04/30/2020   18:36:58   ( -68.73,  80.10) 04/30/2020   18:36:07  ( -68.73,  80.16)    2.68                51
 05/03/2020   09:12:15   ( -69.91,-140.30) 05/03/2020   09:13:21  ( -69.81,-137.80)   96.16                66
 05/03/2020   10:02:40   (  68.84,  28.54) 05/03/2020   10:03:03  (  68.82,  28.54)    1.51                23
 05/03/2020   10:53:20   ( -68.68,-163.93) 05/03/2020   10:52:33  ( -68.71,-163.97)    3.18                47
 05/06/2020   02:19:04   (  68.84, 144.44) 05/06/2020   02:19:29  (  68.85, 144.46)    0.97                25
 05/06/2020   03:09:45   ( -68.74, -48.10) 05/06/2020   03:08:59  ( -68.73, -48.05)    2.52                46
 05/08/2020   18:35:28   (  68.85, -99.67) 05/08/2020   18:35:55  (  68.86, -99.62)    2.20                27
 05/08/2020   19:26:08   ( -68.70,  67.86) 05/08/2020   19:25:26  ( -68.70,  67.80)    2.48                42
 05/11/2020   10:51:52   (  68.86,  16.23) 05/11/2020   10:52:21  (  68.88,  16.28)    2.79                29
 05/11/2020   11:42:32   ( -68.71,-176.24) 05/11/2020   11:41:52  ( -68.71,-176.29)    1.93                40
 05/14/2020   03:08:15   (  68.88, 132.12) 05/14/2020   03:08:46  (  68.88, 132.19)    2.90                31