Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/19/2019   22:15:50   (  -0.05,-128.48) (  -0.84,-131.92)  392.70                80
 11/20/2019   21:59:34   (  -0.06,-128.47) (   0.18,-127.34)  128.23                80
 11/22/2019   10:18:26   (   0.04,-128.49) (   0.95,-132.55)  462.69                80
 11/23/2019   10:02:11   (   0.05,-128.49) (  -0.07,-127.98)   57.97                80
 11/25/2019   22:02:15   (  -0.05,-128.42) (  -0.09,-128.64)   24.47                80
 11/26/2019   21:45:59   (  -0.06,-128.41) (   0.93,-124.06)  495.89                80
 11/28/2019   10:04:52   (   0.04,-128.43) (   0.21,-129.27)   96.04                80
 11/29/2019   09:48:36   (   0.05,-128.41) (  -0.81,-124.70)  423.92                80
 11/30/2019   22:07:35   (  -0.03,-128.35) (  -0.35,-129.93)  180.15                80
 12/01/2019   21:51:19   (  -0.04,-128.33) (   0.61,-125.34)  339.74                80