Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 2 13.  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)
 02/15/2023   15:17:54   ( -72.64, 130.83) 02/15/2023   15:18:29  ( -72.65, 130.79)    1.86                35
 02/15/2023   16:08:39   (  72.56, -61.71) 02/15/2023   16:07:56  (  72.56, -61.73)    0.81                43
 02/18/2023   06:45:10   (  72.66,  79.00) 02/18/2023   06:45:27  (  72.67,  79.09)    3.18                17
 02/18/2023   07:35:53   ( -72.55,-113.46) 02/18/2023   07:34:57  ( -72.55,-113.51)    1.51                56
 02/20/2023   21:21:45   (  72.97,-140.75) 02/20/2023   21:22:56  (  72.84,-139.98)   28.91                71
 02/20/2023   22:12:23   ( -72.66,  27.23) 02/20/2023   22:12:26  ( -72.67,  27.32)    3.27                 3
 02/20/2023   23:03:07   (  72.54,-165.21) 02/20/2023   23:01:54  (  72.52,-165.31)    3.87                73
 02/23/2023   12:48:53   ( -72.73, 168.00) 02/23/2023   12:49:56  ( -72.73, 168.06)    2.18                63
 02/23/2023   13:39:38   (  72.66, -24.54) 02/23/2023   13:39:23  (  72.64, -24.48)    3.08                15
 02/23/2023   14:30:10   ( -71.99, 144.11) 02/23/2023   14:29:02  ( -72.04, 142.07)   70.14                68
 02/26/2023   04:16:07   (  72.68, 116.31) 02/26/2023   04:16:52  (  72.70, 116.27)    2.35                45
 02/26/2023   05:06:51   ( -72.63, -76.26) 02/26/2023   05:06:21  ( -72.63, -76.22)    1.36                30