Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 1 27.  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)
 01/28/2023   03:57:51   ( -72.62, -59.34) 01/28/2023   03:58:47  ( -72.61, -59.31)    1.09                56
 01/28/2023   04:48:35   (  72.50, 108.21) 01/28/2023   04:48:14  (  72.52, 108.16)    3.00                21
 01/30/2023   19:25:07   (  72.59,-111.06) 01/30/2023   19:25:49  (  72.59,-111.12)    2.01                42
 01/30/2023   20:15:51   ( -72.51,  56.40) 01/30/2023   20:15:18  ( -72.53,  56.40)    1.31                33
 02/02/2023   10:52:23   ( -72.61,-162.89) 02/02/2023   10:52:52  ( -72.62,-162.83)    2.26                29
 02/02/2023   11:43:07   (  72.50,   4.65) 02/02/2023   11:42:19  (  72.52,   4.63)    2.85                48
 02/05/2023   01:29:08   ( -73.36, -23.62) 02/05/2023   01:30:14  ( -73.31, -20.86)   88.21                66
 02/05/2023   02:19:39   (  72.60, 145.34) 02/05/2023   02:19:53  (  72.58, 145.35)    2.30                14
 02/05/2023   03:10:23   ( -72.53, -47.20) 02/05/2023   03:09:22  ( -72.52, -47.12)    2.38                61
 02/07/2023   16:56:12   (  72.82, -74.21) 02/07/2023   16:57:24  (  72.72, -73.79)   17.68                72
 02/07/2023   17:46:53   ( -72.59,  93.58) 02/07/2023   17:46:54  ( -72.61,  93.64)    2.85                 1