Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 4 9.  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)
 04/09/2023   23:22:01   (  73.39,-171.11) 04/09/2023   23:23:13  (  73.29,-170.58)   19.87                72
 04/10/2023   00:12:40   ( -73.13,  -3.21) 04/10/2023   00:12:39  ( -73.16,  -3.20)    3.37                 1
 04/10/2023   01:03:18   (  72.66, 165.10) 04/10/2023   01:02:08  (  72.75, 163.67)   48.33                70
 04/12/2023   11:26:13   ( -73.74,-172.92) 04/12/2023   11:27:21  ( -73.64,-170.95)   62.45                68
 04/12/2023   12:16:48   (  73.18,  -4.33) 04/12/2023   12:16:50  (  73.18,  -4.23)    3.18                 2
 04/12/2023   13:07:29   ( -73.02, 163.35) 04/12/2023   13:06:16  ( -73.05, 163.16)    6.89                73
 04/14/2023   23:30:23   (  73.90,-174.33) 04/14/2023   23:31:29  (  73.79,-171.70)   82.29                66
 04/15/2023   00:20:53   ( -73.19,  -5.34) 04/15/2023   00:21:04  ( -73.18,  -5.31)    1.63                11
 04/15/2023   01:11:38   (  73.09, 162.20) 04/15/2023   01:10:27  (  73.09, 162.17)    1.11                71
 04/17/2023   12:25:00   (  73.18,  -6.29) 04/17/2023   12:25:15  (  73.20,  -6.35)    3.17                15
 04/17/2023   13:15:43   ( -73.10, 161.18) 04/17/2023   13:14:40  ( -73.11, 161.14)    1.89                63
 04/20/2023   00:29:06   ( -73.25,  -7.44) 04/20/2023   00:29:27  ( -73.24,  -7.34)    3.25                21
 04/20/2023   01:19:51   (  73.15, 160.08) 04/20/2023   01:18:50  (  73.16, 160.15)    2.33                61
 04/22/2023   12:33:13   (  73.26,  -8.46) 04/22/2023   12:33:37  (  73.26,  -8.37)    2.67                24
 04/22/2023   13:23:56   ( -73.17, 159.04) 04/22/2023   13:23:02  ( -73.17, 159.11)    2.05                54