Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 10 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/30/2019   10:54:22   (   0.00,-137.21) (   0.98,-141.53)  492.76                80
 10/31/2019   10:38:06   (   0.00,-137.21) (  -0.03,-136.96)   28.65                80
 11/02/2019   22:38:11   (  -0.00,-137.20) (  -0.11,-137.62)   48.30                80
 11/03/2019   22:21:56   (  -0.00,-137.20) (   0.90,-133.05)  472.66                80
 11/05/2019   10:40:47   (  -0.00,-137.20) (   0.26,-138.25)  120.62                80
 11/06/2019   10:21:52   (  -0.00,-137.19) (  -0.81,-133.69)  400.15                80
 11/07/2019   22:43:32   (  -0.00,-137.18) (  -0.40,-138.92)  198.38                80
 11/08/2019   22:27:16   (   0.00,-137.17) (   0.62,-134.34)  322.13                80
 11/10/2019   10:46:08   (  -0.00,-137.16) (   0.55,-139.54)  271.98                80
 11/11/2019   10:29:52   (  -0.00,-137.15) (  -0.46,-134.97)  248.13                80
 11/12/2019   22:48:52   (   0.00,-137.13) (  -0.67,-140.21)  351.54                80