Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 6 5.  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)
 06/06/2019   23:20:10   (  70.52,-173.21) 06/06/2019   23:20:42  (  70.52,-173.18)    1.17                32
 06/07/2019   00:10:51   ( -70.40,  -5.70) 06/07/2019   00:10:12  ( -70.42,  -5.70)    1.81                39
 06/09/2019   15:36:36   (  70.51, -57.31) 06/09/2019   15:37:12  (  70.49, -57.36)    3.34                36
 06/09/2019   16:27:18   ( -70.44, 110.13) 06/09/2019   16:26:41  ( -70.44, 110.20)    2.59                37
 06/12/2019   07:53:03   (  70.50,  58.59) 06/12/2019   07:53:42  (  70.50,  58.54)    2.05                39
 06/12/2019   08:43:45   ( -70.42,-133.96) 06/12/2019   08:43:12  ( -70.40,-133.98)    2.53                33
 06/15/2019   00:09:30   (  70.49, 174.50) 06/15/2019   00:10:12  (  70.51, 174.43)    3.32                42
 06/15/2019   01:00:12   ( -70.40, -18.05) 06/15/2019   00:59:42  ( -70.41, -18.08)    1.65                30
 06/17/2019   16:25:58   (  70.53, -69.69) 06/17/2019   16:26:42  (  70.52, -69.67)    1.37                44
 06/17/2019   17:16:39   ( -70.43,  97.78) 06/17/2019   17:16:11  ( -70.42,  97.81)    2.15                28