Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 8.  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   (  70.41,  92.39) 10/08/2019   05:38:20  (  70.39,  92.36)    2.37                27
 10/08/2019   06:28:34   ( -70.29,-100.11) 10/08/2019   06:27:50  ( -70.28,-100.17)    3.03                44
 10/10/2019   21:54:19   (  70.41,-151.71) 10/10/2019   21:54:49  (  70.42,-151.72)    1.34                30
 10/10/2019   22:45:00   ( -70.28,  15.80) 10/10/2019   22:44:19  ( -70.31,  15.75)    3.17                41
 10/13/2019   14:10:45   (  70.40, -35.82) 10/13/2019   14:11:19  (  70.39, -35.89)    3.35                34
 10/13/2019   15:01:26   ( -70.33, 131.62) 10/13/2019   15:00:47  ( -70.33, 131.66)    1.73                39
 10/16/2019   06:27:10   (  70.40,  80.07) 10/16/2019   06:27:47  (  70.40,  80.02)    1.91                37
 10/16/2019   07:17:52   ( -70.32,-112.48) 10/16/2019   07:17:17  ( -70.30,-112.51)    2.98                35
 10/18/2019   22:43:36   (  70.41,-164.05) 10/18/2019   22:44:16  (  70.42,-164.08)    1.79                40
 10/18/2019   23:34:18   ( -70.32,   3.41) 10/18/2019   23:33:46  ( -70.31,   3.40)    0.83                32
 10/21/2019   15:00:02   (  70.41, -48.16) 10/21/2019   15:00:45  (  70.43, -48.18)    2.09                43
 10/21/2019   15:50:44   ( -70.32, 119.30) 10/21/2019   15:50:15  ( -70.33, 119.30)    0.84                29