Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 6 11.  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)
 06/12/2019   07:53:03   (  70.51,  58.58) 06/12/2019   07:53:42  (  70.49,  58.53)    2.54                39
 06/12/2019   08:43:45   ( -70.43,-133.98) 06/12/2019   08:43:11  ( -70.44,-133.92)    2.40                34
 06/15/2019   00:09:30   (  70.50, 174.48) 06/15/2019   00:10:12  (  70.50, 174.42)    2.25                42
 06/15/2019   01:00:12   ( -70.42, -18.07) 06/15/2019   00:59:42  ( -70.39, -18.11)    3.19                30
 06/17/2019   16:25:56   (  70.50, -69.63) 06/17/2019   16:26:41  (  70.50, -69.70)    2.56                45
 06/17/2019   17:16:38   ( -70.41,  97.83) 06/17/2019   17:16:11  ( -70.39,  97.78)    2.23                27
 06/20/2019   08:42:23   (  70.49,  46.26) 06/20/2019   08:43:11  (  70.50,  46.18)    3.04                48
 06/20/2019   09:33:05   ( -70.40,-146.27) 06/20/2019   09:32:41  ( -70.39,-146.34)    2.55                24
 06/23/2019   00:58:51   (  70.54, 162.06) 06/23/2019   00:59:40  (  70.55, 162.13)    2.57                49
 06/23/2019   01:49:33   ( -70.44, -30.46) 06/23/2019   01:49:10  ( -70.44, -30.38)    2.77                23