Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/28/2019   10:04:51   (   0.04,-128.43) (   0.25,-129.26)   95.56                80
 11/29/2019   09:48:35   (   0.05,-128.41) (  -0.77,-124.68)  424.34                80
 11/30/2019   22:07:35   (  -0.02,-128.35) (  -0.40,-129.92)  179.53                80
 12/01/2019   21:51:19   (  -0.03,-128.33) (   0.62,-125.34)  340.21                80
 12/03/2019   10:10:11   (   0.01,-128.34) (   0.51,-130.55)  252.63                80
 12/04/2019   09:53:56   (   0.02,-128.32) (  -0.51,-125.98)  266.95                80
 12/05/2019   22:12:55   (   0.00,-128.25) (  -0.65,-131.21)  337.26                80
 12/06/2019   21:56:40   (  -0.01,-128.23) (   0.37,-126.64)  182.17                80
 12/08/2019   10:15:32   (  -0.01,-128.23) (   0.77,-131.85)  411.24                80
 12/09/2019   09:59:16   (   0.00,-128.21) (  -0.19,-127.26)  107.88                80
 12/10/2019   22:18:15   (   0.01,-128.14) (  -0.97,-132.50)  497.25                80
 12/11/2019   22:01:59   (   0.00,-128.11) (   0.06,-127.92)   21.36                80