Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 10 19.  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)
 10/19/2023   05:35:52   (  73.96,  96.82) 10/19/2023   05:37:01  (  73.86,  98.62)   56.48                69
 10/19/2023   06:26:27   ( -73.47, -94.66) 10/19/2023   06:26:36  ( -73.48, -94.58)    2.86                 9
 10/19/2023   07:17:12   (  73.41,  72.78) 10/19/2023   07:16:03  (  73.39,  72.89)    3.66                69
 10/21/2023   21:02:54   ( -73.99,  45.04) 10/21/2023   21:04:02  ( -73.90,  46.94)   59.42                68
 10/21/2023   21:53:29   (  73.44,-146.33) 10/21/2023   21:53:36  (  73.45,-146.39)    2.05                 7
 10/21/2023   22:44:13   ( -73.39,  21.11) 10/21/2023   22:43:05  ( -73.38,  21.10)    1.44                68
 10/24/2023   12:29:52   (  73.84,  -6.30) 10/24/2023   12:31:02  (  73.77,  -5.08)   38.59                70
 10/24/2023   13:20:30   ( -73.49, 161.85) 10/24/2023   13:20:35  ( -73.50, 161.96)    3.51                 5
 10/24/2023   14:11:14   (  73.38, -30.59) 10/24/2023   14:10:02  (  73.41, -30.58)    2.76                72
 10/27/2023   03:56:52   ( -73.80, -57.91) 10/27/2023   03:58:03  ( -73.73, -56.91)   31.85                71
 10/27/2023   04:47:32   (  73.49, 110.12) 10/27/2023   04:47:33  (  73.48, 110.20)    2.58                 1
 10/27/2023   05:38:15   ( -73.39, -82.32) 10/27/2023   05:37:02  ( -73.42, -82.30)    3.16                73
 10/29/2023   19:23:51   (  73.67,-109.32) 10/29/2023   19:25:02  (  73.63,-108.88)   14.54                71
 10/29/2023   20:14:32   ( -73.47,  58.47) 10/29/2023   20:14:33  ( -73.46,  58.40)    2.50                 1
 10/29/2023   21:05:13   (  73.21,-133.63) 10/29/2023   21:04:01  (  73.31,-134.27)   23.24                72
 11/01/2023   10:50:50   ( -73.61,-160.88) 11/01/2023   10:52:02  ( -73.57,-160.75)    6.42                72
 11/01/2023   11:41:34   (  73.50,   6.68) 11/01/2023   11:41:29  (  73.47,   6.68)    3.91                 5