Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-20
TLE Epoch: 2023 5 1.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-20) NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2023   21:39:53   (  81.19, 155.74) 05/01/2023   21:38:46  (  81.19, 155.59)    2.57                67
 05/01/2023   22:30:39   ( -81.19, -37.00) 05/01/2023   22:29:31  ( -81.19, -37.18)    3.12                68
 05/01/2023   23:21:25   (  81.19, 130.14) 05/01/2023   23:20:16  (  81.19, 130.19)    0.91                69
 05/02/2023   00:12:10   ( -81.19, -62.21) 05/02/2023   00:11:00  ( -81.19, -62.20)    0.44                70
 05/02/2023   01:02:56   (  81.19, 104.93) 05/02/2023   01:01:46  (  81.19, 104.78)    2.51                70
 05/02/2023   01:53:42   ( -81.19, -87.81) 05/02/2023   01:52:31  ( -81.19, -87.99)    3.10                71
 05/02/2023   02:44:27   (  81.19,  79.71) 05/02/2023   02:43:15  (  81.18,  79.76)    0.93                72
 05/02/2023   03:35:13   ( -81.19,-113.02) 05/02/2023   03:34:00  ( -81.19,-113.01)    0.33                73
 05/02/2023   04:25:59   (  81.19,  54.11) 05/02/2023   04:24:46  (  81.19,  53.97)    2.47                73
 05/02/2023   05:16:44   ( -81.19,-138.24) 05/02/2023   05:15:30  ( -81.19,-138.41)    3.04                74
 05/02/2023   06:07:30   (  81.19,  28.90) 05/02/2023   06:06:15  (  81.19,  28.95)    0.94                75