Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 10 16.  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)
 10/17/2025   03:50:09   (  76.40, 131.67) 10/17/2025   03:51:14  (  76.42, 131.79)    3.48                65
 10/17/2025   04:40:52   ( -76.34, -60.76) 10/17/2025   04:40:43  ( -76.34, -60.83)    1.85                 9
 10/17/2025   05:31:24   (  75.75, 108.64) 10/17/2025   05:30:20  (  75.79, 105.08)   97.35                64
 10/19/2025   20:06:44   (  76.38,-112.33) 10/19/2025   20:07:41  (  76.42,-112.33)    3.68                57
 10/19/2025   20:57:28   ( -76.36,  55.08) 10/19/2025   20:57:10  ( -76.34,  55.06)    2.01                18
 10/22/2025   12:23:21   (  76.42,   3.45) 10/22/2025   12:24:09  (  76.39,   3.47)    3.25                48
 10/22/2025   13:14:04   ( -76.35, 171.04) 10/22/2025   13:13:37  ( -76.37, 171.03)    2.15                27
 10/25/2025   04:39:57   (  76.42, 119.37) 10/25/2025   04:40:36  (  76.39, 119.36)    3.64                39
 10/25/2025   05:30:40   ( -76.35, -73.03) 10/25/2025   05:30:04  ( -76.37, -73.08)    2.70                36
 10/27/2025   20:56:33   (  76.43,-124.74) 10/27/2025   20:57:02  (  76.41,-124.68)    3.05                29