Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 24.  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)
 08/26/2020   16:19:27   ( -68.99, 114.47) 08/26/2020   16:20:03  ( -69.00, 114.53)    2.47                36
 08/26/2020   17:10:10   (  68.84, -78.00) 08/26/2020   17:09:31  (  68.84, -78.02)    0.89                39
 08/29/2020   08:35:50   ( -69.00,-129.62) 08/29/2020   08:36:32  ( -69.00,-129.58)    1.74                42
 08/29/2020   09:26:33   (  68.84,  37.90) 08/29/2020   09:26:00  (  68.84,  37.86)    1.83                33
 09/01/2020   00:52:12   ( -69.00, -13.72) 09/01/2020   00:53:00  ( -69.01, -13.70)    0.76                48
 09/01/2020   01:42:56   (  68.90, 153.74) 09/01/2020   01:42:27  (  68.90, 153.81)    2.85                29
 09/01/2020   02:33:20   ( -67.88, -37.61) 09/01/2020   02:32:13  ( -67.90, -39.77)   90.24                67
 09/03/2020   17:08:35   ( -69.01, 102.19) 09/03/2020   17:09:29  ( -69.01, 102.18)    0.74                54
 09/03/2020   17:59:19   (  68.91, -90.36) 09/03/2020   17:58:56  (  68.89, -90.32)    2.27                23
 09/03/2020   18:49:47   ( -68.10,  78.02) 09/03/2020   18:48:38  ( -68.12,  76.37)   68.48                69
 09/06/2020   09:24:58   ( -69.02,-141.91) 09/06/2020   09:25:58  ( -69.00,-141.94)    2.46                60
 09/06/2020   10:15:42   (  68.91,  25.55) 09/06/2020   10:15:25  (  68.88,  25.55)    3.20                17
 09/06/2020   11:06:13   ( -68.27,-166.28) 09/06/2020   11:05:03  ( -68.34,-167.49)   50.32                70