Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 10 17.  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)
 10/19/2025   20:06:45   (  76.40,-112.40) 10/19/2025   20:07:42  (  76.39,-112.40)    0.63                57
 10/19/2025   20:57:29   ( -76.38,  55.00) 10/19/2025   20:57:10  ( -76.37,  55.14)    3.80                19
 10/22/2025   12:23:21   (  76.39,   3.56) 10/22/2025   12:24:09  (  76.41,   3.55)    2.42                48
 10/22/2025   13:14:05   ( -76.36, 170.98) 10/22/2025   13:13:38  ( -76.34, 170.94)    2.91                27
 10/25/2025   04:39:56   (  76.39, 119.48) 10/25/2025   04:40:35  (  76.41, 119.41)    2.27                39
 10/25/2025   05:30:40   ( -76.36, -73.09) 10/25/2025   05:30:03  ( -76.38, -73.03)    2.81                37
 10/27/2025   20:56:32   (  76.40,-124.63) 10/27/2025   20:57:01  (  76.42,-124.64)    1.97                29
 10/27/2025   21:47:16   ( -76.37,  42.81) 10/27/2025   21:46:30  ( -76.35,  42.76)    2.39                46
 10/30/2025   13:13:08   (  76.42,  -8.78) 10/30/2025   13:13:27  (  76.41,  -8.79)    1.55                19