Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 4 26.  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)
 04/26/2025   09:23:11   ( -75.76,-133.92) 04/26/2025   09:24:21  ( -75.74,-133.88)    2.53                70
 04/26/2025   10:13:56   (  75.71,  33.58) 04/26/2025   10:13:48  (  75.67,  33.57)    3.58                 8
 04/26/2025   11:04:31   ( -75.32,-157.85) 04/26/2025   11:03:22  ( -75.35,-159.72)   52.81                69
 04/29/2025   01:39:54   ( -75.74, -17.94) 04/29/2025   01:40:51  ( -75.73, -18.03)    2.57                57
 04/29/2025   02:30:39   (  75.69, 149.54) 04/29/2025   02:30:17  (  75.71, 149.55)    3.21                22
 05/01/2025   17:56:38   ( -75.77,  97.84) 05/01/2025   17:57:20  ( -75.74,  97.86)    3.07                42
 05/01/2025   18:47:23   (  75.72, -94.69) 05/01/2025   18:46:46  (  75.72, -94.56)    3.53                37
 05/04/2025   10:13:21   ( -75.76,-146.26) 05/04/2025   10:13:48  ( -75.76,-146.20)    1.62                27
 05/04/2025   11:04:05   (  75.68,  21.35) 05/04/2025   11:03:15  (  75.69,  21.22)    3.68                50
 05/07/2025   01:39:32   (  76.35, 160.23) 05/07/2025   01:40:37  (  76.26, 163.57)   88.51                65
 05/07/2025   02:30:03   ( -75.77, -30.39) 05/07/2025   02:30:15  ( -75.75, -30.36)    2.80                12
 05/07/2025   03:20:47   (  75.69, 137.20) 05/07/2025   03:19:41  (  75.72, 137.20)    3.44                66
 05/09/2025   17:56:03   (  75.83, -82.02) 05/09/2025   17:57:13  (  75.82, -81.92)    3.19                70
 05/09/2025   18:46:45   ( -75.75,  85.59) 05/09/2025   18:46:42  ( -75.75,  85.52)    1.76                 3