Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/29/2019   09:48:36   (   0.05,-128.41) (  -0.81,-124.69)  424.32                80
 11/30/2019   22:07:35   (  -0.02,-128.35) (  -0.36,-129.93)  179.66                80
 12/01/2019   21:51:20   (  -0.03,-128.33) (   0.66,-125.35)  340.03                80
 12/03/2019   10:10:11   (   0.01,-128.33) (   0.53,-130.55)  252.90                80
 12/04/2019   09:53:56   (   0.02,-128.32) (  -0.49,-125.97)  266.64                80
 12/05/2019   22:12:55   (   0.00,-128.25) (  -0.67,-131.21)  337.68                80
 12/06/2019   21:56:39   (  -0.01,-128.23) (   0.35,-126.63)  181.68                80
 12/08/2019   10:15:32   (  -0.01,-128.23) (   0.79,-131.84)  411.78                80
 12/09/2019   09:59:16   (   0.00,-128.20) (  -0.23,-127.27)  107.30                80
 12/10/2019   22:18:14   (   0.01,-128.13) (  -0.98,-132.49)  497.96                80
 12/11/2019   22:01:59   (   0.00,-128.10) (   0.04,-127.92)   20.57                80