Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 27.  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) (   0.23,-129.26)   95.53                80
 11/29/2019   09:48:36   (   0.05,-128.41) (  -0.79,-124.69)  424.38                80
 11/30/2019   22:07:35   (  -0.02,-128.35) (  -0.38,-129.92)  179.36                80
 12/01/2019   21:51:19   (  -0.03,-128.33) (   0.65,-125.35)  340.43                80
 12/03/2019   10:10:12   (   0.01,-128.34) (   0.49,-130.56)  252.36                80
 12/04/2019   09:53:56   (   0.02,-128.32) (  -0.53,-125.98)  267.30                80
 12/05/2019   22:12:55   (   0.00,-128.26) (  -0.69,-131.21)  336.83                80
 12/06/2019   21:56:39   (  -0.01,-128.24) (   0.34,-126.63)  182.67                80
 12/08/2019   10:15:31   (  -0.01,-128.24) (   0.80,-131.84)  410.66                80
 12/09/2019   09:59:16   (   0.00,-128.22) (  -0.22,-127.27)  108.50                80
 12/10/2019   22:18:15   (   0.01,-128.14) (  -0.93,-132.50)  496.51                80