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)
 09/23/2025   02:11:15   ( -76.29, -23.83) 09/23/2025   02:12:23  ( -76.28, -23.93)    2.58                68
 09/23/2025   03:02:00   (  76.26, 143.57) 09/23/2025   03:01:49  (  76.27, 143.67)    2.48                11
 09/23/2025   03:52:32   ( -75.73, -47.21) 09/23/2025   03:51:26  ( -75.80, -50.15)   80.72                66
 09/25/2025   18:27:53   ( -76.30,  92.04) 09/25/2025   18:28:51  ( -76.31,  92.03)    0.72                58
 09/25/2025   19:18:37   (  76.24,-100.41) 09/25/2025   19:18:18  (  76.24,-100.54)    3.47                19
 09/28/2025   10:44:32   ( -76.32,-152.11) 09/28/2025   10:45:20  ( -76.31,-152.08)    1.41                48
 09/28/2025   11:35:16   (  76.26,  15.42) 09/28/2025   11:34:47  (  76.24,  15.34)    3.05                29
 10/01/2025   03:01:10   ( -76.30, -36.13) 10/01/2025   03:01:49  ( -76.29, -36.25)    3.40                39
 10/01/2025   03:51:54   (  76.25, 131.38) 10/01/2025   03:51:15  (  76.27, 131.31)    2.90                39
 10/03/2025   19:17:49   ( -76.33,  79.67) 10/03/2025   19:18:17  ( -76.30,  79.66)    3.36                28