Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 6 10.  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   (  70.49,  58.61) 06/12/2019   07:53:42  (  70.51,  58.56)    3.10                39
 06/12/2019   08:43:45   ( -70.41,-133.95) 06/12/2019   08:43:12  ( -70.40,-133.97)    1.20                33
 06/15/2019   00:09:30   (  70.54, 174.42) 06/15/2019   00:10:11  (  70.51, 174.45)    2.75                41
 06/15/2019   01:00:11   ( -70.40, -18.05) 06/15/2019   00:59:41  ( -70.41, -18.08)    1.56                30
 06/17/2019   16:25:57   (  70.53, -69.69) 06/17/2019   16:26:41  (  70.51, -69.67)    2.39                44
 06/17/2019   17:16:38   ( -70.39,  97.85) 06/17/2019   17:16:11  ( -70.41,  97.81)    2.85                27
 06/20/2019   08:42:24   (  70.53,  46.19) 06/20/2019   08:43:11  (  70.51,  46.20)    2.61                47
 06/20/2019   09:33:06   ( -70.44,-146.34) 06/20/2019   09:32:41  ( -70.41,-146.32)    3.06                25
 06/23/2019   00:58:51   (  70.54, 162.07) 06/23/2019   00:59:41  (  70.50, 162.07)    3.47                50
 06/23/2019   01:49:33   ( -70.43, -30.44) 06/23/2019   01:49:11  ( -70.40, -30.44)    3.05                22