Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 12 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)
 12/27/2022   12:12:01   ( -72.89, 176.21) 12/27/2022   12:13:11  ( -72.80, 177.49)   43.16                70
 12/27/2022   13:02:39   (  72.43, -15.54) 12/27/2022   13:02:43  (  72.45, -15.53)    1.61                 4
 12/27/2022   13:53:22   ( -72.35, 151.95) 12/27/2022   13:52:13  ( -72.33, 151.89)    2.62                69
 12/30/2022   03:39:12   (  72.51, 125.21) 12/30/2022   03:40:18  (  72.49, 125.14)    2.94                66
 12/30/2022   04:29:55   ( -72.41, -67.29) 12/30/2022   04:29:47  ( -72.43, -67.34)    2.65                 8
 12/30/2022   05:20:31   (  71.86, 101.10) 12/30/2022   05:19:22  (  71.91,  99.37)   60.20                69
 01/01/2023   19:06:30   ( -72.53,  73.36) 01/01/2023   19:07:22  ( -72.51,  73.41)    2.75                52
 01/01/2023   19:57:14   (  72.39,-119.05) 01/01/2023   19:56:49  (  72.41,-119.12)    3.39                25
 01/04/2023   10:33:48   (  72.48,  21.68) 01/04/2023   10:34:24  (  72.48,  21.60)    2.84                36
 01/04/2023   11:24:32   ( -72.42,-170.89) 01/04/2023   11:23:53  ( -72.43,-170.87)    1.01                39
 01/07/2023   02:01:06   ( -72.50, -30.16) 01/07/2023   02:01:28  ( -72.48, -30.17)    2.35                22
 01/07/2023   02:51:51   (  72.43, 137.30) 01/07/2023   02:50:54  (  72.43, 137.38)    2.89                57