Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 23.  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)
 12/25/2022   12:49:08   ( -72.61, 167.46) 12/25/2022   12:50:03  ( -72.61, 167.46)    0.78                55
 12/25/2022   13:39:53   (  72.51, -25.02) 12/25/2022   13:39:27  (  72.50, -25.09)    2.88                26
 12/28/2022   00:53:31   (  72.96, 165.69) 12/28/2022   00:54:41  (  72.87, 166.76)   36.18                70
 12/28/2022   01:44:08   ( -72.56, -26.16) 12/28/2022   01:44:10  ( -72.59, -26.13)    2.78                 2
 12/28/2022   02:34:49   (  72.26, 141.75) 12/28/2022   02:33:37  (  72.31, 141.03)   24.90                72
 12/30/2022   13:48:24   (  72.62, -27.31) 12/30/2022   13:48:51  (  72.62, -27.27)    1.35                27
 12/30/2022   14:39:07   ( -72.52, 140.21) 12/30/2022   14:38:16  ( -72.55, 140.25)    3.32                51
 01/02/2023   01:52:39   ( -72.67, -28.45) 01/02/2023   01:53:34  ( -72.67, -28.37)    2.34                55
 01/02/2023   02:43:23   (  72.54, 139.14) 01/02/2023   02:42:58  (  72.56, 139.08)    3.09                25
 01/04/2023   13:57:01   (  73.00, -30.19) 01/04/2023   13:58:11  (  72.93, -29.08)   37.03                70
 01/04/2023   14:47:38   ( -72.59, 138.00) 01/04/2023   14:47:41  ( -72.59, 137.93)    2.24                 3