Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/17/2019   10:13:05   (   0.07,-128.53) (   0.70,-131.25)  311.31                80
 11/18/2019   09:56:50   (   0.08,-128.52) (  -0.31,-126.68)  209.59                80
 11/19/2019   22:15:50   (  -0.05,-128.47) (  -0.82,-131.92)  393.23                80
 11/20/2019   21:59:35   (  -0.06,-128.46) (   0.20,-127.35)  127.59                80
 11/22/2019   10:18:27   (   0.04,-128.49) (   0.93,-132.56)  463.28                80
 11/23/2019   10:02:11   (   0.05,-128.48) (  -0.08,-127.98)   57.34                80
 11/25/2019   22:02:15   (  -0.05,-128.41) (  -0.08,-128.64)   25.78                80
 11/26/2019   21:46:00   (  -0.06,-128.40) (   0.94,-124.07)  494.57                80
 11/28/2019   10:04:51   (   0.04,-128.42) (   0.26,-129.26)   97.36                80
 11/29/2019   09:48:36   (   0.05,-128.40) (  -0.76,-124.69)  422.52                80
 11/30/2019   22:07:35   (  -0.03,-128.33) (  -0.41,-129.92)  181.96                80