Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 4 11.  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)
 04/12/2023   11:26:12   ( -73.73,-172.90) 04/12/2023   11:27:20  ( -73.64,-170.94)   61.95                68
 04/12/2023   12:16:48   (  73.17,  -4.31) 04/12/2023   12:16:50  (  73.19,  -4.22)    3.34                 2
 04/12/2023   13:07:29   ( -73.01, 163.37) 04/12/2023   13:06:16  ( -73.05, 163.17)    7.79                73
 04/14/2023   23:30:23   (  73.90,-174.31) 04/14/2023   23:31:29  (  73.79,-171.69)   81.68                66
 04/15/2023   00:20:53   ( -73.18,  -5.32) 04/15/2023   00:21:04  ( -73.18,  -5.31)    0.41                11
 04/15/2023   01:11:38   (  73.08, 162.22) 04/15/2023   01:10:27  (  73.10, 162.18)    2.43                71
 04/17/2023   12:25:01   (  73.22,  -6.38) 04/17/2023   12:25:15  (  73.20,  -6.35)    2.08                14
 04/17/2023   13:15:43   ( -73.09, 161.20) 04/17/2023   13:14:40  ( -73.11, 161.14)    3.07                63
 04/20/2023   00:29:06   ( -73.23,  -7.41) 04/20/2023   00:29:27  ( -73.24,  -7.34)    2.39                21
 04/20/2023   01:19:51   (  73.14, 160.11) 04/20/2023   01:18:50  (  73.15, 160.15)    2.23                61
 04/22/2023   12:33:13   (  73.24,  -8.43) 04/22/2023   12:33:37  (  73.25,  -8.38)    1.78                24
 04/22/2023   13:23:56   ( -73.16, 159.07) 04/22/2023   13:23:02  ( -73.16, 159.09)    0.82                54
 04/25/2023   00:37:17   ( -73.27,  -9.48) 04/25/2023   00:37:47  ( -73.29,  -9.39)    3.20                30
 04/25/2023   01:28:02   (  73.19, 158.02) 04/25/2023   01:27:10  (  73.20, 158.10)    2.97                52