Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 9 10.  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)
 09/12/2023   00:12:28   (  74.06, 176.88) 09/12/2023   00:13:09  (  74.09, 176.91)    3.36                41
 09/12/2023   01:03:12   ( -74.02, -15.68) 09/12/2023   01:02:33  ( -74.02, -15.60)    2.71                39
 09/14/2023   12:16:30   ( -74.10, 175.81) 09/14/2023   12:17:00  ( -74.09, 175.91)    3.57                30
 09/14/2023   13:07:14   (  73.99, -16.61) 09/14/2023   13:06:23  (  74.01, -16.61)    1.82                51
 09/17/2023   00:20:33   (  74.10, 174.85) 09/17/2023   00:20:50  (  74.10, 174.95)    3.05                17
 09/17/2023   01:11:16   ( -73.99, -17.56) 09/17/2023   01:10:15  ( -73.99, -17.64)    2.51                61
 09/19/2023   11:34:02   (  74.69,   4.99) 09/19/2023   11:35:09  (  74.58,   7.43)   72.73                67
 09/19/2023   12:24:35   ( -74.09, 173.89) 09/19/2023   12:24:42  ( -74.06, 173.88)    3.04                 7
 09/19/2023   13:15:18   (  73.94, -18.42) 09/19/2023   13:14:05  (  73.97, -18.68)    8.28                73
 09/21/2023   23:37:55   ( -74.25,   5.20) 09/21/2023   23:39:07  ( -74.22,   5.58)   12.05                72
 09/22/2023   00:28:37   (  74.06, 173.00) 09/22/2023   00:28:31  (  74.06, 172.89)    3.37                 6