Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 4 12.  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)
 04/14/2023   23:30:23   (  73.87,-174.25) 04/14/2023   23:31:30  (  73.76,-171.77)   78.00                67
 04/15/2023   00:20:53   ( -73.16,  -5.27) 04/15/2023   00:21:04  ( -73.20,  -5.28)    3.76                11
 04/15/2023   01:11:39   (  73.10, 162.16) 04/15/2023   01:10:27  (  73.11, 162.21)    1.90                72
 04/17/2023   12:25:01   (  73.19,  -6.32) 04/17/2023   12:25:15  (  73.22,  -6.31)    3.70                14
 04/17/2023   13:15:44   ( -73.12, 161.15) 04/17/2023   13:14:40  ( -73.13, 161.17)    1.72                64
 04/20/2023   00:29:06   ( -73.20,  -7.34) 04/20/2023   00:29:28  ( -73.21,  -7.41)    2.34                22
 04/20/2023   01:19:52   (  73.15, 160.07) 04/20/2023   01:18:51  (  73.12, 160.09)    3.12                61
 04/22/2023   12:33:13   (  73.25,  -8.44) 04/22/2023   12:33:37  (  73.23,  -8.44)    2.43                24
 04/22/2023   13:23:56   ( -73.17, 159.05) 04/22/2023   13:23:02  ( -73.14, 159.04)    3.55                54
 04/25/2023   00:37:18   ( -73.27,  -9.47) 04/25/2023   00:37:48  ( -73.27,  -9.43)    1.31                30
 04/25/2023   01:28:03   (  73.18, 158.03) 04/25/2023   01:27:11  (  73.18, 158.06)    0.96                52