Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 10 6.  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)
 10/06/2025   11:34:25   ( -76.34,-164.44) 10/06/2025   11:34:47  ( -76.33,-164.39)    1.65                22
 10/06/2025   12:25:09   (  76.28,   3.08) 10/06/2025   12:24:14  (  76.26,   3.05)    2.12                55
 10/09/2025   03:51:01   ( -76.32, -48.46) 10/09/2025   03:51:16  ( -76.33, -48.48)    1.61                15
 10/09/2025   04:41:45   (  76.27, 119.03) 10/09/2025   04:40:43  (  76.27, 118.94)    2.30                62
 10/11/2025   19:17:04   (  76.77,-101.65) 10/11/2025   19:18:11  (  76.67, -99.10)   66.01                67
 10/11/2025   20:07:38   ( -76.32,  67.48) 10/11/2025   20:07:46  ( -76.31,  67.32)    4.14                 8
 10/11/2025   20:58:22   (  76.27,-125.05) 10/11/2025   20:57:12  (  76.29,-125.10)    2.51                70
 10/14/2025   11:33:34   (  76.48,  15.47) 10/14/2025   11:34:45  (  76.42,  15.94)   13.47                71
 10/14/2025   12:24:16   ( -76.36,-176.78) 10/14/2025   12:24:14  ( -76.35,-176.66)    3.29                 2
 10/14/2025   13:14:54   (  76.06,  -8.33) 10/14/2025   13:13:44  (  76.14,  -9.72)   38.04                70
 10/17/2025   03:50:09   (  76.40, 131.67) 10/17/2025   03:51:14  (  76.38, 131.69)    2.16                65
 10/17/2025   04:40:52   ( -76.33, -60.73) 10/17/2025   04:40:42  ( -76.37, -60.73)    4.03                10
 10/19/2025   20:06:44   (  76.38,-112.32) 10/19/2025   20:07:40  (  76.41,-112.33)    3.10                56
 10/19/2025   20:57:28   ( -76.35,  55.12) 10/19/2025   20:57:09  ( -76.35,  55.09)    0.86                19