Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 4 1.  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)
 04/02/2023   11:09:35   ( -73.14,-167.56) 04/02/2023   11:10:34  ( -73.13,-167.64)    2.67                59
 04/02/2023   12:00:20   (  73.08,  -0.12) 04/02/2023   11:59:55  (  73.09,  -0.08)    1.63                25
 04/04/2023   23:13:43   (  73.17,-168.63) 04/04/2023   23:14:46  (  73.18,-168.64)    0.75                63
 04/05/2023   00:04:26   ( -73.11,  -1.17) 04/05/2023   00:04:11  ( -73.11,  -1.12)    1.72                15
 04/07/2023   11:17:49   ( -73.21,-169.70) 04/07/2023   11:19:01  ( -73.21,-169.67)    1.24                72
 04/07/2023   12:08:34   (  73.10,  -2.16) 04/07/2023   12:08:24  (  73.11,  -2.20)    1.56                10
 04/07/2023   12:59:06   ( -72.48, 166.47) 04/07/2023   12:57:58  ( -72.56, 164.40)   69.63                68
 04/09/2023   23:22:00   (  73.37,-171.06) 04/09/2023   23:23:12  (  73.27,-170.62)   18.06                72
 04/10/2023   00:12:40   ( -73.15,  -3.25) 04/10/2023   00:12:38  ( -73.14,  -3.22)    1.30                 2
 04/10/2023   01:03:17   (  72.64, 165.15) 04/10/2023   01:02:08  (  72.67, 163.53)   53.58                69
 04/12/2023   11:26:11   ( -73.67,-172.76) 04/12/2023   11:27:20  ( -73.57,-171.08)   53.78                69
 04/12/2023   12:16:48   (  73.18,  -4.31) 04/12/2023   12:16:49  (  73.16,  -4.26)    2.42                 1
 04/12/2023   13:07:28   ( -72.95, 163.50) 04/12/2023   13:06:15  ( -73.03, 163.14)   14.64                73
 04/14/2023   23:30:21   (  73.81,-174.09) 04/14/2023   23:31:28  (  73.70,-171.87)   70.20                67
 04/15/2023   00:20:53   ( -73.19,  -5.32) 04/15/2023   00:21:01  ( -73.20,  -5.25)    3.02                 8