Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/25/2019   22:02:15   (  -0.04,-128.43) (  -0.08,-128.64)   23.63                80
 11/26/2019   21:45:59   (  -0.06,-128.41) (   0.95,-124.06)  496.83                80
 11/28/2019   10:04:51   (   0.04,-128.43) (   0.24,-129.26)   95.36                80
 11/29/2019   09:48:35   (   0.05,-128.41) (  -0.78,-124.68)  424.69                80
 11/30/2019   22:07:35   (  -0.02,-128.35) (  -0.38,-129.92)  178.85                80
 12/01/2019   21:51:19   (  -0.03,-128.34) (   0.64,-125.35)  341.05                80
 12/03/2019   10:10:11   (   0.01,-128.35) (   0.49,-130.56)  251.59                80
 12/04/2019   09:53:56   (   0.02,-128.33) (  -0.53,-125.98)  268.18                80
 12/05/2019   22:12:54   (   0.00,-128.27) (  -0.68,-131.21)  335.74                80
 12/06/2019   21:56:39   (  -0.01,-128.25) (   0.34,-126.63)  183.87                80
 12/08/2019   10:15:31   (  -0.01,-128.25) (   0.79,-131.84)  409.28                80