Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 10 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)
 10/24/2020   15:10:36   (  69.71, -49.09) 10/24/2020   15:11:45  (  69.58, -47.72)   55.22                69
 10/24/2020   16:01:06   ( -69.01, 119.23) 10/24/2020   16:01:23  ( -69.03, 119.19)    2.91                17
 10/24/2020   16:51:50   (  68.91, -73.32) 10/24/2020   16:50:50  (  68.92, -73.30)    1.31                60
 10/27/2020   07:27:02   (  69.92,  66.52) 10/27/2020   07:28:09  (  69.81,  68.48)   75.90                67
 10/27/2020   08:17:29   ( -69.05,-124.90) 10/27/2020   08:17:51  ( -69.04,-124.91)    0.66                22
 10/27/2020   09:08:12   (  68.90,  42.60) 10/27/2020   09:07:18  (  68.93,  42.59)    2.94                54
 10/29/2020   23:43:28   (  70.12,-177.87) 10/29/2020   23:44:34  (  69.98,-175.40)   95.02                66
 10/30/2020   00:33:51   ( -69.03,  -8.97) 10/30/2020   00:34:19  ( -69.05,  -9.02)    2.94                28
 10/30/2020   01:24:35   (  68.95, 158.46) 10/30/2020   01:23:46  (  68.93, 158.47)    2.02                49
 11/01/2020   16:50:14   ( -69.08, 106.90) 11/01/2020   16:50:47  ( -69.05, 106.86)    2.84                33
 11/01/2020   17:40:57   (  68.95, -85.61) 11/01/2020   17:40:14  (  68.93, -85.65)    1.93                43
 11/04/2020   09:06:36   ( -69.12,-137.25) 11/04/2020   09:07:13  ( -69.11,-137.19)    2.66                37
 11/04/2020   09:57:19   (  69.00,  30.24) 11/04/2020   09:56:40  (  68.98,  30.30)    2.90                39
 11/07/2020   01:22:58   ( -69.11, -21.31) 11/07/2020   01:23:41  ( -69.10, -21.32)    1.37                43
 11/07/2020   02:13:41   (  68.99, 146.16) 11/07/2020   02:13:08  (  68.97, 146.17)    2.30                33