Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 10 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/14/2019   21:59:56   (  -0.23,-128.02) (  -0.09,-127.39)   72.23                80
 10/17/2019   09:59:51   (   0.23,-128.15) (   0.23,-128.02)   14.31                80
 10/19/2019   22:02:37   (  -0.21,-128.15) (  -0.34,-128.70)   62.08                80
 10/20/2019   21:46:22   (  -0.22,-128.18) (   0.67,-124.12)  461.69                80
 10/22/2019   10:05:14   (   0.19,-128.26) (   0.42,-129.34)  122.70                80
 10/23/2019   09:48:59   (   0.20,-128.28) (  -0.59,-124.76)  400.60                80
 10/24/2019   22:07:59   (  -0.18,-128.25) (  -0.58,-130.00)  200.74                80
 10/25/2019   21:51:43   (  -0.19,-128.26) (   0.43,-125.43)  322.67                80
 10/27/2019   10:10:36   (   0.17,-128.35) (   0.67,-130.65)  261.93                80