Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 10 8.  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)
 10/09/2025   03:51:01   ( -76.32, -48.47) 10/09/2025   03:51:16  ( -76.33, -48.49)    1.41                15
 10/09/2025   04:41:45   (  76.27, 119.03) 10/09/2025   04:40:43  (  76.27, 118.95)    2.27                62
 10/11/2025   19:17:04   (  76.77,-101.65) 10/11/2025   19:18:11  (  76.68, -99.09)   66.25                67
 10/11/2025   20:07:38   ( -76.32,  67.47) 10/11/2025   20:07:46  ( -76.31,  67.33)    3.82                 8
 10/11/2025   20:58:22   (  76.27,-125.05) 10/11/2025   20:57:12  (  76.30,-125.09)    2.81                70
 10/14/2025   11:33:34   (  76.48,  15.47) 10/14/2025   11:34:46  (  76.39,  15.81)   13.37                72
 10/14/2025   12:24:16   ( -76.36,-176.79) 10/14/2025   12:24:14  ( -76.36,-176.63)    4.11                 2
 10/14/2025   13:14:55   (  76.10,  -8.50) 10/14/2025   13:13:44  (  76.15,  -9.68)   32.05                71
 10/17/2025   03:50:09   (  76.40, 131.67) 10/17/2025   03:51:14  (  76.41, 131.76)    2.34                65
 10/17/2025   04:40:52   ( -76.33, -60.74) 10/17/2025   04:40:43  ( -76.34, -60.83)    2.51                 9
 10/17/2025   05:31:24   (  75.76, 108.64) 10/17/2025   05:30:20  (  75.78, 105.06)   97.98                64
 10/19/2025   20:06:44   (  76.38,-112.32) 10/19/2025   20:07:41  (  76.40,-112.38)    2.31                57
 10/19/2025   20:57:28   ( -76.35,  55.11) 10/19/2025   20:57:10  ( -76.33,  55.04)    2.77                18