Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 11 10.  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)
 11/12/2023   00:39:06   ( -74.35,  -9.57) 11/12/2023   00:40:11  ( -74.24,  -6.34)   98.03                65
 11/12/2023   01:29:36   (  73.53, 159.77) 11/12/2023   01:29:50  (  73.54, 159.73)    1.63                14
 11/12/2023   02:20:19   ( -73.46, -32.74) 11/12/2023   02:19:19  ( -73.47, -32.79)    1.86                60
 11/14/2023   16:06:04   (  74.21, -60.93) 11/14/2023   16:07:10  (  74.14, -58.31)   79.75                66
 11/14/2023   16:56:35   ( -73.55, 108.02) 11/14/2023   16:56:49  ( -73.56, 108.02)    0.57                14
 11/14/2023   17:47:20   (  73.46, -84.47) 11/14/2023   17:46:16  (  73.46, -84.53)    1.92                64
 11/17/2023   07:33:02   ( -74.19,-112.58) 11/17/2023   07:34:09  ( -74.12,-110.11)   75.53                67
 11/17/2023   08:23:36   (  73.57,  56.27) 11/17/2023   08:23:45  (  73.56,  56.30)    1.27                 9
 11/17/2023   09:14:19   ( -73.50,-136.24) 11/17/2023   09:13:14  ( -73.49,-136.21)    1.27                65
 11/19/2023   22:59:58   (  74.03,-163.87) 11/19/2023   23:01:07  (  73.93,-162.27)   50.35                69
 11/19/2023   23:50:33   ( -73.57,   4.58) 11/19/2023   23:50:42  ( -73.55,   4.54)    1.97                 9
 11/20/2023   00:41:18   (  73.48, 172.09) 11/20/2023   00:40:08  (  73.51, 172.09)    3.27                70
 11/22/2023   14:26:55   ( -73.99, 144.54) 11/22/2023   14:28:05  ( -73.88, 145.88)   43.05                70
 11/22/2023   15:17:33   (  73.56, -47.11) 11/22/2023   15:17:36  (  73.57, -47.14)    2.01                 3