Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 3 31.  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)
 04/01/2023   11:28:08   ( -72.86,-171.62) 04/01/2023   11:29:15  ( -72.88,-171.62)    2.15                67
 04/01/2023   12:18:54   (  72.79,  -4.17) 04/01/2023   12:18:42  (  72.79,  -4.15)    1.03                12
 04/01/2023   13:09:28   ( -72.28, 164.20) 04/01/2023   13:08:18  ( -72.35, 162.66)   52.62                70
 04/04/2023   02:55:20   (  72.89, 136.56) 04/04/2023   02:56:13  (  72.89, 136.66)    3.39                53
 04/04/2023   03:46:02   ( -72.77, -55.88) 04/04/2023   03:45:43  ( -72.77, -55.94)    1.88                19
 04/06/2023   18:22:28   ( -72.88,  84.83) 04/06/2023   18:23:13  ( -72.88,  84.89)    2.08                45
 04/06/2023   19:13:13   (  72.77,-107.63) 04/06/2023   19:12:40  (  72.79,-107.65)    2.31                33
 04/09/2023   09:49:38   (  72.84,  33.15) 04/09/2023   09:50:10  (  72.85,  33.09)    2.33                32
 04/09/2023   10:40:21   ( -72.77,-159.39) 04/09/2023   10:39:39  ( -72.79,-159.40)    1.92                42
 04/12/2023   01:16:45   ( -72.86, -18.63) 04/12/2023   01:17:07  ( -72.86, -18.65)    0.73                22
 04/12/2023   02:07:30   (  72.76, 148.89) 04/12/2023   02:06:34  (  72.76, 148.80)    2.93                56