Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 9 15.  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)
 09/17/2023   00:20:33   (  74.09, 174.87) 09/17/2023   00:20:50  (  74.10, 174.94)    2.23                17
 09/17/2023   01:11:16   ( -73.98, -17.55) 09/17/2023   01:10:15  ( -73.98, -17.67)    3.66                61
 09/19/2023   11:34:02   (  74.68,   5.01) 09/19/2023   11:35:09  (  74.56,   7.36)   70.83                67
 09/19/2023   12:24:35   ( -74.09, 173.89) 09/19/2023   12:24:41  ( -74.08, 173.91)    1.17                 6
 09/19/2023   13:15:17   (  73.89, -18.29) 09/19/2023   13:14:05  (  73.94, -18.74)   15.10                72
 09/21/2023   23:37:55   ( -74.25,   5.19) 09/21/2023   23:39:06  ( -74.21,   5.55)   12.29                71
 09/22/2023   00:28:38   (  74.11, 172.88) 09/22/2023   00:28:29  (  74.11, 172.99)    3.44                 9
 09/22/2023   01:19:11   ( -73.50, -18.33) 09/22/2023   01:18:03  ( -73.53, -20.60)   71.45                68
 09/24/2023   11:41:55   (  74.14,   4.51) 09/24/2023   11:42:55  (  74.14,   4.42)    2.86                60
 09/24/2023   12:32:39   ( -74.07, 172.00) 09/24/2023   12:32:19  ( -74.09, 171.97)    2.57                20
 09/26/2023   23:45:56   ( -74.16,   3.50) 09/26/2023   23:46:43  ( -74.15,   3.46)    1.39                47
 09/27/2023   00:36:40   (  74.07, 171.04) 09/27/2023   00:36:05  (  74.09, 170.99)    2.95                35