Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 10 13.  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)
 10/14/2025   11:33:33   (  76.45,  15.56) 10/14/2025   11:34:45  (  76.42,  15.91)    9.70                72
 10/14/2025   12:24:15   ( -76.34,-176.71) 10/14/2025   12:24:14  ( -76.34,-176.71)    0.42                 1
 10/14/2025   13:14:54   (  76.08,  -8.41) 10/14/2025   13:13:44  (  76.13,  -9.74)   36.21                70
 10/17/2025   03:50:08   (  76.38, 131.77) 10/17/2025   03:51:14  (  76.39, 131.71)    2.24                66
 10/17/2025   04:40:52   ( -76.36, -60.83) 10/17/2025   04:40:42  ( -76.37, -60.74)    2.66                10
 10/19/2025   20:06:45   (  76.40,-112.40) 10/19/2025   20:07:42  (  76.39,-112.41)    1.33                57
 10/19/2025   20:57:29   ( -76.38,  55.01) 10/19/2025   20:57:10  ( -76.37,  55.14)    3.53                19
 10/22/2025   12:23:21   (  76.39,   3.57) 10/22/2025   12:24:09  (  76.41,   3.54)    2.27                48
 10/22/2025   13:14:05   ( -76.36, 171.00) 10/22/2025   13:13:38  ( -76.34, 170.94)    2.70                27
 10/25/2025   04:39:56   (  76.39, 119.51) 10/25/2025   04:40:35  (  76.40, 119.41)    3.19                39
 10/25/2025   05:30:40   ( -76.35, -73.05) 10/25/2025   05:30:03  ( -76.38, -73.02)    3.32                37
 10/27/2025   20:56:33   (  76.44,-124.75) 10/27/2025   20:57:01  (  76.42,-124.65)    3.32                28