Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 6.  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)
 10/08/2019   05:37:53   (  70.42,  92.37) 10/08/2019   05:38:19  (  70.42,  92.41)    1.48                26
 10/08/2019   06:28:34   ( -70.30,-100.13) 10/08/2019   06:27:49  ( -70.31,-100.12)    0.98                45
 10/10/2019   21:54:19   (  70.41,-151.73) 10/10/2019   21:54:49  (  70.39,-151.76)    2.63                30
 10/10/2019   22:45:00   ( -70.29,  15.79) 10/10/2019   22:44:19  ( -70.28,  15.72)    2.68                41
 10/13/2019   14:10:45   (  70.41, -35.83) 10/13/2019   14:11:18  (  70.41, -35.85)    1.17                33
 10/13/2019   15:01:27   ( -70.33, 131.62) 10/13/2019   15:00:48  ( -70.31, 131.63)    2.38                39
 10/16/2019   06:27:11   (  70.40,  80.08) 10/16/2019   06:27:47  (  70.43,  80.05)    3.39                36
 10/16/2019   07:17:53   ( -70.31,-112.47) 10/16/2019   07:17:17  ( -70.32,-112.47)    1.03                36
 10/18/2019   22:43:37   (  70.44,-164.11) 10/18/2019   22:44:15  (  70.44,-164.05)    2.10                38
 10/18/2019   23:34:19   ( -70.35,   3.36) 10/18/2019   23:33:45  ( -70.33,   3.43)    3.44                34