Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 8 21.  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)
 08/22/2023   02:30:43   ( -73.30, -36.22) 08/22/2023   02:31:39  ( -73.29, -36.25)    1.76                56
 08/22/2023   03:21:28   (  73.20, 131.32) 08/22/2023   03:21:06  (  73.20, 131.22)    3.15                22
 08/24/2023   17:57:51   (  73.30, -87.96) 08/24/2023   17:58:41  (  73.29, -87.99)    1.17                50
 08/24/2023   18:48:34   ( -73.23,  79.51) 08/24/2023   18:48:10  ( -73.23,  79.51)    0.16                24
 08/27/2023   09:24:56   ( -73.28,-139.66) 08/27/2023   09:25:45  ( -73.30,-139.74)    3.15                49
 08/27/2023   10:15:42   (  73.24,  27.74) 08/27/2023   10:15:11  (  73.26,  27.82)    3.20                31
 08/30/2023   00:52:03   (  73.31, 168.54) 08/30/2023   00:52:45  (  73.30, 168.52)    1.14                42
 08/30/2023   01:42:46   ( -73.23, -23.95) 08/30/2023   01:42:14  ( -73.24, -23.97)    1.87                32
 09/01/2023   16:19:08   ( -73.30, 116.84) 09/01/2023   16:19:48  ( -73.32, 116.79)    2.98                40
 09/01/2023   17:09:53   (  73.22, -75.67) 09/01/2023   17:09:15  (  73.22, -75.76)    2.99                38