Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 28.  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   ( -69.82, 103.93) 04/30/2020   16:56:56  ( -69.70, 106.15)   86.75                67
 04/30/2020   17:46:16   (  68.80, -87.32) 04/30/2020   17:46:37  (  68.82, -87.35)    2.53                21
 04/30/2020   18:36:57   ( -68.70,  80.14) 04/30/2020   18:36:07  ( -68.70,  80.14)    0.64                50
 05/03/2020   09:12:15   ( -69.93,-140.33) 05/03/2020   09:13:21  ( -69.79,-137.83)   96.97                66
 05/03/2020   10:02:41   (  68.86,  28.51) 05/03/2020   10:03:03  (  68.85,  28.58)    2.90                22
 05/03/2020   10:53:21   ( -68.70,-163.96) 05/03/2020   10:52:34  ( -68.69,-164.00)    2.39                47
 05/06/2020   02:19:04   (  68.81, 144.48) 05/06/2020   02:19:30  (  68.83, 144.44)    2.72                26
 05/06/2020   03:09:45   ( -68.71, -48.06) 05/06/2020   03:09:00  ( -68.72, -48.07)    1.25                45
 05/08/2020   18:35:28   (  68.87, -99.69) 05/08/2020   18:35:55  (  68.85, -99.64)    2.74                27
 05/08/2020   19:26:08   ( -68.71,  67.84) 05/08/2020   19:25:26  ( -68.69,  67.79)    3.23                42
 05/11/2020   10:51:52   (  68.88,  16.21) 05/11/2020   10:52:21  (  68.87,  16.28)    2.87                29
 05/11/2020   11:42:32   ( -68.72,-176.26) 05/11/2020   11:41:52  ( -68.71,-176.29)    1.36                40