Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 9 18.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/20/2025   09:54:40   ( -76.47,-140.45) 09/20/2025   09:55:51  ( -76.37,-139.53)   26.81                71
 09/20/2025   10:45:21   (  76.27,  27.65) 09/20/2025   10:45:19  (  76.26,  27.76)    3.15                 2
 09/20/2025   11:36:01   ( -76.10,-164.41) 09/20/2025   11:34:48  ( -76.18,-164.85)   14.93                73
 09/23/2025   02:11:15   ( -76.30, -23.87) 09/23/2025   02:12:22  ( -76.32, -23.79)    3.36                67
 09/23/2025   03:01:59   (  76.23, 143.69) 09/23/2025   03:01:49  (  76.26, 143.64)    3.16                10
 09/23/2025   03:52:32   ( -75.74, -47.25) 09/23/2025   03:51:26  ( -75.79, -50.17)   80.06                66
 09/25/2025   18:27:54   ( -76.31,  92.01) 09/25/2025   18:28:52  ( -76.31,  92.05)    1.09                58
 09/25/2025   19:18:38   (  76.25,-100.45) 09/25/2025   19:18:19  (  76.24,-100.53)    2.31                19
 09/28/2025   10:44:32   ( -76.32,-152.13) 09/28/2025   10:45:20  ( -76.33,-152.01)    3.39                48
 09/28/2025   11:35:16   (  76.27,  15.39) 09/28/2025   11:34:47  (  76.26,  15.40)    0.91                29
 10/01/2025   03:01:10   ( -76.30, -36.12) 10/01/2025   03:01:49  ( -76.33, -36.11)    4.05                39
 10/01/2025   03:51:54   (  76.25, 131.38) 10/01/2025   03:51:16  (  76.26, 131.29)    2.76                38