Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2019   22:21:56   (  -0.00,-137.20) (   0.91,-133.05)  472.69                80
 11/05/2019   10:40:47   (   0.00,-137.20) (   0.26,-138.25)  120.46                80
 11/06/2019   10:24:32   (   0.00,-137.19) (  -0.75,-133.67)  400.19                80
 11/07/2019   22:43:32   (  -0.00,-137.17) (  -0.40,-138.92)  198.77                80
 11/08/2019   22:27:17   (  -0.00,-137.17) (   0.62,-134.34)  321.66                80
 11/10/2019   10:46:08   (   0.01,-137.16) (   0.56,-139.54)  272.33                80
 11/11/2019   10:29:52   (   0.01,-137.15) (  -0.45,-134.97)  247.75                80
 11/12/2019   22:48:53   (  -0.01,-137.12) (  -0.68,-140.21)  352.24                80
 11/13/2019   22:32:37   (  -0.02,-137.10) (   0.33,-135.63)  167.35                80
 11/15/2019   10:51:29   (   0.02,-137.08) (   0.86,-140.83)  428.26                80
 11/16/2019   10:35:13   (   0.03,-137.05) (  -0.16,-136.26)   90.62                80