Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 22.  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)
 08/24/2020   00:03:04   ( -68.97,  -1.41) 08/24/2020   00:03:35  ( -68.95,  -1.40)    1.87                31
 08/24/2020   00:53:48   (  68.87, 166.04) 08/24/2020   00:53:02  (  68.85, 166.11)    3.60                46
 08/26/2020   16:19:26   ( -68.97, 114.50) 08/26/2020   16:20:03  ( -68.96, 114.48)    1.85                37
 08/26/2020   17:10:10   (  68.87, -78.05) 08/26/2020   17:09:30  (  68.85, -78.01)    2.93                40
 08/29/2020   08:35:49   ( -68.98,-129.59) 08/29/2020   08:36:32  ( -68.96,-129.64)    2.92                43
 08/29/2020   09:26:33   (  68.87,  37.86) 08/29/2020   09:25:59  (  68.85,  37.87)    3.21                34
 09/01/2020   00:52:12   ( -68.98, -13.68) 09/01/2020   00:53:00  ( -69.01, -13.69)    2.75                48
 09/01/2020   01:42:56   (  68.88, 153.77) 09/01/2020   01:42:27  (  68.89, 153.81)    2.16                29
 09/01/2020   02:33:20   ( -67.85, -37.58) 09/01/2020   02:32:13  ( -67.90, -39.76)   91.57                67
 09/03/2020   17:08:35   ( -68.99, 102.22) 09/03/2020   17:09:29  ( -68.99, 102.17)    2.33                54
 09/03/2020   17:59:19   (  68.88, -90.32) 09/03/2020   17:58:56  (  68.88, -90.33)    0.71                23
 09/03/2020   18:49:47   ( -68.07,  78.06) 09/03/2020   18:48:38  ( -68.11,  76.36)   70.44                69