Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 8 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)
 08/14/2023   04:09:24   (  73.29, 119.02) 08/14/2023   04:10:26  (  73.29, 119.06)    1.15                62
 08/14/2023   05:00:07   ( -73.23, -73.53) 08/14/2023   04:59:55  ( -73.23, -73.44)    2.86                12
 08/14/2023   05:50:40   (  72.52,  95.32) 08/14/2023   05:49:33  (  72.56,  92.89)   81.06                67
 08/16/2023   19:36:30   ( -73.31,  67.24) 08/16/2023   19:37:32  ( -73.30,  67.30)    2.07                62
 08/16/2023   20:27:15   (  73.20,-125.21) 08/16/2023   20:26:59  (  73.21,-125.23)    1.44                16
 08/16/2023   21:17:46   ( -72.54,  43.54) 08/16/2023   21:16:39  ( -72.57,  41.14)   79.89                67
 08/19/2023   11:03:38   (  73.29,  15.54) 08/19/2023   11:04:36  (  73.28,  15.49)    2.37                58
 08/19/2023   11:54:21   ( -73.22,-176.99) 08/19/2023   11:54:05  ( -73.22,-177.00)    0.82                16
 08/22/2023   02:30:43   ( -73.31, -36.24) 08/22/2023   02:31:40  ( -73.32, -36.18)    2.35                57
 08/22/2023   03:21:28   (  73.22, 131.28) 08/22/2023   03:21:07  (  73.23, 131.27)    1.43                21
 08/24/2023   17:57:51   (  73.32, -88.00) 08/24/2023   17:58:43  (  73.33, -87.93)    2.39                52
 08/24/2023   18:48:34   ( -73.24,  79.49) 08/24/2023   18:48:13  ( -73.22,  79.48)    2.41                21