Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 4.  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)
 10/05/2019   13:21:27   (  70.39, -23.47) 10/05/2019   13:21:51  (  70.39, -23.52)    1.89                24
 10/05/2019   14:12:08   ( -70.28, 144.03) 10/05/2019   14:11:21  ( -70.28, 143.95)    2.86                47
 10/08/2019   05:37:54   (  70.44,  92.35) 10/08/2019   05:38:20  (  70.42,  92.40)    2.85                26
 10/08/2019   06:28:35   ( -70.32,-100.15) 10/08/2019   06:27:50  ( -70.31,-100.12)    1.01                45
 10/10/2019   21:54:18   (  70.38,-151.67) 10/10/2019   21:54:49  (  70.39,-151.76)    3.51                31
 10/10/2019   22:45:00   ( -70.30,  15.76) 10/10/2019   22:44:19  ( -70.29,  15.72)    2.48                41
 10/13/2019   14:10:45   (  70.43, -35.86) 10/13/2019   14:11:18  (  70.42, -35.84)    1.34                33
 10/13/2019   15:01:26   ( -70.29, 131.67) 10/13/2019   15:00:48  ( -70.31, 131.64)    2.28                38
 10/16/2019   06:27:11   (  70.43,  80.03) 10/16/2019   06:27:47  (  70.44,  80.07)    1.97                36
 10/16/2019   07:17:53   ( -70.34,-112.51) 10/16/2019   07:17:17  ( -70.33,-112.45)    2.40                36