Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 4 7.  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)
 04/07/2023   11:17:50   ( -73.26,-169.81) 04/07/2023   11:19:01  ( -73.23,-169.62)    6.43                71
 04/07/2023   12:08:35   (  73.14,  -2.24) 04/07/2023   12:08:24  (  73.14,  -2.14)    3.26                11
 04/07/2023   12:59:07   ( -72.53, 166.38) 04/07/2023   12:57:58  ( -72.59, 164.45)   64.67                69
 04/09/2023   23:22:01   (  73.40,-171.14) 04/09/2023   23:23:13  (  73.28,-170.60)   21.55                72
 04/10/2023   00:12:40   ( -73.14,  -3.23) 04/10/2023   00:12:39  ( -73.15,  -3.21)    1.30                 1
 04/10/2023   01:03:18   (  72.67, 165.08) 04/10/2023   01:02:08  (  72.74, 163.65)   47.76                70
 04/12/2023   11:26:13   ( -73.75,-172.95) 04/12/2023   11:27:21  ( -73.62,-170.98)   63.07                68
 04/12/2023   12:16:48   (  73.15,  -4.25) 04/12/2023   12:16:51  (  73.16,  -4.26)    1.76                 3
 04/12/2023   13:07:30   ( -73.03, 163.32) 04/12/2023   13:06:17  ( -73.03, 163.13)    6.24                73
 04/14/2023   23:30:23   (  73.87,-174.25) 04/14/2023   23:31:30  (  73.76,-171.75)   78.36                67
 04/15/2023   00:20:53   ( -73.16,  -5.26) 04/15/2023   00:21:05  ( -73.16,  -5.36)    3.07                12
 04/15/2023   01:11:38   (  73.11, 162.16) 04/15/2023   01:10:26  (  73.12, 162.23)    2.50                72
 04/17/2023   12:25:00   (  73.20,  -6.34) 04/17/2023   12:25:14  (  73.21,  -6.32)    1.81                14
 04/17/2023   13:15:43   ( -73.13, 161.14) 04/17/2023   13:14:39  ( -73.13, 161.17)    1.41                64
 04/20/2023   00:29:05   ( -73.22,  -7.38) 04/20/2023   00:29:26  ( -73.25,  -7.33)    3.03                21
 04/20/2023   01:19:50   (  73.13, 160.13) 04/20/2023   01:18:49  (  73.16, 160.15)    2.94                61