Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 5 20.  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)
 05/20/2025   11:02:51   (  75.80,  21.67) 05/20/2025   11:03:14  (  75.81,  21.77)    3.01                23
 05/20/2025   11:53:33   ( -75.71,-170.73) 05/20/2025   11:52:43  ( -75.73,-170.83)    3.01                50
 05/23/2025   03:19:33   (  75.80, 137.55) 05/23/2025   03:19:44  (  75.81, 137.66)    3.28                11
 05/23/2025   04:10:16   ( -75.76, -54.98) 05/23/2025   04:09:13  ( -75.74, -54.93)    2.91                63
 05/25/2025   18:45:33   ( -76.01,  85.40) 05/25/2025   18:46:45  ( -75.92,  86.22)   24.64                72
 05/25/2025   19:36:14   (  75.81,-106.59) 05/25/2025   19:36:13  (  75.80,-106.50)    2.97                 1
 05/25/2025   20:26:55   ( -75.67,  61.20) 05/25/2025   20:25:42  ( -75.73,  60.92)    9.79                73
 05/28/2025   11:02:11   ( -75.84,-158.11) 05/28/2025   11:03:16  ( -75.84,-158.13)    0.65                65
 05/28/2025   11:52:55   (  75.78,   9.41) 05/28/2025   11:52:43  (  75.77,   9.29)    3.64                12
 05/28/2025   12:43:26   ( -75.17, 178.69) 05/28/2025   12:42:21  ( -75.25, 175.46)   92.10                65
 05/31/2025   03:18:53   ( -75.86, -42.28) 05/31/2025   03:19:45  ( -75.84, -42.24)    2.33                52
 05/31/2025   04:09:37   (  75.81, 125.22) 05/31/2025   04:09:11  (  75.82, 125.32)    2.88                26
 06/02/2025   19:35:34   ( -75.84,  73.69) 06/02/2025   19:36:14  ( -75.83,  73.60)    2.92                40
 06/02/2025   20:26:18   (  75.79,-118.83) 06/02/2025   20:25:40  (  75.80,-118.85)    0.69                38