Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 6 7.  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)
 06/08/2025   04:08:56   ( -75.84, -54.49) 06/08/2025   04:09:14  ( -75.87, -54.52)    3.67                18
 06/08/2025   04:59:40   (  75.78, 113.01) 06/08/2025   04:58:41  (  75.80, 112.93)    3.22                59
 06/10/2025   19:35:03   (  76.34,-107.74) 06/10/2025   19:36:10  (  76.23,-105.14)   69.60                67
 06/10/2025   20:25:37   ( -75.87,  61.28) 06/10/2025   20:25:45  ( -75.87,  61.36)    2.20                 8
 06/10/2025   21:16:21   (  75.82,-131.24) 06/10/2025   21:15:12  (  75.80,-131.20)    2.78                69
 06/13/2025   11:51:36   (  75.99,   9.46) 06/13/2025   11:52:48  (  75.92,   9.76)   10.67                72
 06/13/2025   12:42:18   ( -75.87, 177.19) 06/13/2025   12:42:17  ( -75.86, 177.19)    1.58                 1
 06/13/2025   13:32:57   (  75.60, -14.58) 06/13/2025   13:31:46  (  75.69, -15.67)   31.71                71
 06/16/2025   04:08:15   (  75.90, 125.66) 06/16/2025   04:09:20  (  75.89, 125.54)    3.36                65
 06/16/2025   04:58:59   ( -75.87, -66.92) 06/16/2025   04:58:48  ( -75.88, -66.87)    1.41                11
 06/16/2025   05:49:30   (  75.23, 102.48) 06/16/2025   05:48:26  (  75.25,  98.98)   99.22                64
 06/18/2025   20:24:56   (  75.92,-118.48) 06/18/2025   20:25:51  (  75.89,-118.57)    3.44                55
 06/18/2025   21:15:40   ( -75.88,  48.95) 06/18/2025   21:15:19  ( -75.88,  49.02)    1.85                21