Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 21.  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)
 12/23/2022   00:44:53   (  72.56, 168.60) 12/23/2022   00:45:19  (  72.55, 168.56)    1.64                26
 12/23/2022   01:35:36   ( -72.48, -23.91) 12/23/2022   01:34:44  ( -72.49, -23.91)    0.94                52
 12/25/2022   12:49:08   ( -72.61, 167.47) 12/25/2022   12:50:03  ( -72.61, 167.47)    0.16                55
 12/25/2022   13:39:53   (  72.51, -25.02) 12/25/2022   13:39:27  (  72.50, -25.09)    2.73                26
 12/28/2022   00:53:30   (  72.96, 165.69) 12/28/2022   00:54:40  (  72.87, 166.76)   36.07                70
 12/28/2022   01:44:07   ( -72.56, -26.15) 12/28/2022   01:44:09  ( -72.59, -26.12)    3.12                 2
 12/28/2022   02:34:48   (  72.26, 141.75) 12/28/2022   02:33:36  (  72.31, 141.03)   25.01                72
 12/30/2022   13:48:24   (  72.62, -27.31) 12/30/2022   13:48:51  (  72.61, -27.28)    1.40                27
 12/30/2022   14:39:07   ( -72.52, 140.21) 12/30/2022   14:38:16  ( -72.54, 140.25)    3.04                51
 01/02/2023   01:52:39   ( -72.67, -28.45) 01/02/2023   01:53:34  ( -72.66, -28.39)    2.36                55
 01/02/2023   02:43:23   (  72.54, 139.13) 01/02/2023   02:42:58  (  72.55, 139.06)    2.58                25