Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 10 29.  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)
 10/29/2020   23:43:28   (  70.13,-177.89) 10/29/2020   23:44:34  (  70.02,-175.36)   96.64                66
 10/30/2020   00:33:51   ( -69.05,  -8.98) 10/30/2020   00:34:19  ( -69.08,  -8.99)    3.19                28
 10/30/2020   01:24:35   (  68.96, 158.45) 10/30/2020   01:23:46  (  68.97, 158.51)    2.81                49
 11/01/2020   16:50:14   ( -69.10, 106.87) 11/01/2020   16:50:48  ( -69.09, 106.90)    1.52                34
 11/01/2020   17:40:57   (  68.96, -85.63) 11/01/2020   17:40:15  (  68.97, -85.60)    1.75                42
 11/04/2020   09:06:35   ( -69.09,-137.21) 11/04/2020   09:07:16  ( -69.09,-137.22)    0.87                41
 11/04/2020   09:57:18   (  68.96,  30.28) 11/04/2020   09:56:43  (  68.97,  30.27)    0.97                35
 11/07/2020   01:22:57   ( -69.09, -21.28) 11/07/2020   01:23:45  ( -69.08, -21.35)    2.70                48
 11/07/2020   02:13:40   (  68.97, 146.20) 11/07/2020   02:13:12  (  68.97, 146.14)    2.15                28
 11/07/2020   03:04:05   ( -67.97, -45.17) 11/07/2020   03:02:58  ( -67.98, -47.43)   94.16                67
 11/09/2020   17:39:20   ( -69.15,  94.56) 11/09/2020   17:40:13  ( -69.13,  94.59)    2.05                53
 11/09/2020   18:30:03   (  69.03, -97.97) 11/09/2020   18:29:40  (  69.01, -97.92)    2.90                23
 11/09/2020   19:20:31   ( -68.18,  70.47) 11/09/2020   19:19:22  ( -68.25,  68.77)   70.76                69