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   ( -73.15,-167.59) 04/02/2023   11:10:33  ( -73.18,-167.56)    2.84                58
 04/02/2023   12:00:21   (  73.09,  -0.14) 04/02/2023   11:59:56  (  73.07,  -0.10)    2.29                25
 04/04/2023   23:13:44   (  73.19,-168.66) 04/04/2023   23:14:47  (  73.16,-168.67)    2.52                63
 04/05/2023   00:04:27   ( -73.12,  -1.20) 04/05/2023   00:04:12  ( -73.10,  -1.15)    3.15                15
 04/07/2023   11:17:49   ( -73.23,-169.74) 04/07/2023   11:19:01  ( -73.19,-169.70)    3.98                72
 04/07/2023   12:08:34   (  73.12,  -2.20) 04/07/2023   12:08:23  (  73.14,  -2.14)    3.17                11
 04/07/2023   12:59:06   ( -72.50, 166.44) 04/07/2023   12:57:58  ( -72.54, 164.37)   69.33                68
 04/09/2023   23:22:00   (  73.39,-171.11) 04/09/2023   23:23:11  (  73.30,-170.56)   20.33                71
 04/10/2023   00:12:39   ( -73.12,  -3.18) 04/10/2023   00:12:38  ( -73.12,  -3.26)    2.52                 1
 04/10/2023   01:03:17   (  72.66, 165.10) 04/10/2023   01:02:07  (  72.70, 163.59)   50.26                70
 04/12/2023   11:26:11   ( -73.69,-172.81) 04/12/2023   11:27:20  ( -73.54,-171.13)   55.19                69
 04/12/2023   12:16:47   (  73.15,  -4.25) 04/12/2023   12:16:49  (  73.13,  -4.32)    3.24                 2
 04/12/2023   13:07:28   ( -72.98, 163.45) 04/12/2023   13:06:15  ( -73.00, 163.09)   12.11                73
 04/14/2023   23:30:20   (  73.79,-174.05) 04/14/2023   23:31:27  (  73.72,-171.83)   69.41                67
 04/15/2023   00:20:52   ( -73.17,  -5.28) 04/15/2023   00:21:01  ( -73.17,  -5.31)    1.13                 9