Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 10 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)
 10/08/2023   15:47:43   (  74.01, -56.41) 10/08/2023   15:48:51  (  73.89, -54.28)   66.94                68
 10/08/2023   16:38:16   ( -73.41, 112.36) 10/08/2023   16:38:28  ( -73.41, 112.31)    1.59                12
 10/08/2023   17:29:01   (  73.35, -80.21) 10/08/2023   17:27:55  (  73.32, -80.22)    3.33                66
 10/11/2023   07:14:47   ( -74.07,-108.29) 10/11/2023   07:15:54  ( -73.98,-105.84)   75.63                67
 10/11/2023   08:05:20   (  73.43,  60.57) 10/11/2023   08:05:30  (  73.43,  60.60)    1.04                10
 10/11/2023   08:56:04   ( -73.37,-131.97) 10/11/2023   08:54:59  ( -73.37,-131.90)    2.26                65
 10/13/2023   22:41:49   (  74.02,-159.88) 10/13/2023   22:42:57  (  73.91,-157.76)   66.35                68
 10/13/2023   23:32:22   ( -73.41,   8.90) 10/13/2023   23:32:34  ( -73.43,   8.84)    2.73                12
 10/14/2023   00:23:07   (  73.37, 176.32) 10/14/2023   00:22:01  (  73.34, 176.29)    2.99                66
 10/16/2023   14:08:52   ( -74.06, 148.30) 10/16/2023   14:09:59  ( -73.97, 150.61)   71.49                67
 10/16/2023   14:59:25   (  73.43, -42.85) 10/16/2023   14:59:34  (  73.46, -42.85)    3.83                 9
 10/16/2023   15:50:09   ( -73.36, 124.62) 10/16/2023   15:49:04  ( -73.35, 124.55)    2.58                65
 10/19/2023   05:35:51   (  73.94,  96.88) 10/19/2023   05:37:00  (  73.85,  98.59)   54.02                69
 10/19/2023   06:26:26   ( -73.43, -94.58) 10/19/2023   06:26:36  ( -73.42, -94.69)    3.43                10