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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/15/2019   21:54:14   (  -0.10,-128.49) (   0.45,-126.05)  278.76                80
 11/17/2019   10:13:06   (   0.07,-128.53) (   0.67,-131.26)  311.38                80
 11/18/2019   09:56:50   (   0.08,-128.52) (  -0.35,-126.69)  209.39                80
 11/19/2019   22:15:50   (  -0.05,-128.47) (  -0.84,-131.92)  393.96                80
 11/20/2019   21:59:34   (  -0.06,-128.46) (   0.18,-127.34)  126.74                80
 11/22/2019   10:18:26   (   0.04,-128.49) (   0.94,-132.56)  463.89                80
 11/23/2019   10:02:11   (   0.05,-128.47) (  -0.07,-127.98)   56.58                80
 11/25/2019   22:02:15   (  -0.05,-128.40) (  -0.08,-128.64)   27.10                80
 11/26/2019   21:45:58   (  -0.06,-128.39) (   0.88,-124.05)  493.15                80
 11/28/2019   10:04:51   (   0.04,-128.40) (   0.25,-129.26)   98.52                80