Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 9 20.  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   ( -76.45,-140.37) 09/20/2025   09:55:52  ( -76.34,-139.61)   23.32                72
 09/20/2025   10:45:21   (  76.24,  27.73) 09/20/2025   10:45:20  (  76.23,  27.68)    2.03                 1
 09/20/2025   11:36:02   ( -76.12,-164.50) 09/20/2025   11:34:48  ( -76.20,-164.78)   11.80                74
 09/23/2025   02:11:14   ( -76.28, -23.80) 09/23/2025   02:12:22  ( -76.29, -23.88)    2.89                68
 09/23/2025   03:01:59   (  76.25, 143.61) 09/23/2025   03:01:49  (  76.23, 143.55)    3.12                10
 09/23/2025   03:52:32   ( -75.76, -47.33) 09/23/2025   03:51:25  ( -75.81, -50.11)   76.01                67
 09/25/2025   18:27:53   ( -76.29,  92.08) 09/25/2025   18:28:52  ( -76.28,  91.94)    3.81                59
 09/25/2025   19:18:38   (  76.27,-100.54) 09/25/2025   19:18:18  (  76.26,-100.48)    2.01                20
 09/28/2025   10:44:32   ( -76.30,-152.06) 09/28/2025   10:45:21  ( -76.29,-152.13)    2.16                49
 09/28/2025   11:35:16   (  76.25,  15.46) 09/28/2025   11:34:47  (  76.27,  15.44)    2.67                29
 10/01/2025   03:01:11   ( -76.33, -36.23) 10/01/2025   03:01:49  ( -76.34, -36.10)    3.60                38
 10/01/2025   03:51:55   (  76.27, 131.28) 10/01/2025   03:51:16  (  76.26, 131.30)    1.36                39
 10/03/2025   19:17:48   ( -76.31,  79.75) 10/03/2025   19:18:17  ( -76.32,  79.71)    1.25                29