Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 2 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/16/2020   09:52:50   (  -0.36,-128.37) (  -0.95,-125.68)  306.31                80
 02/17/2020   22:11:50   (   0.37,-128.41) (  -0.20,-130.92)  286.29                80
 02/18/2020   21:55:35   (   0.36,-128.42) (   0.84,-126.35)  236.80                80
 02/20/2020   10:14:25   (  -0.36,-128.42) (   0.32,-131.54)  356.01                80
 02/21/2020   09:58:09   (  -0.36,-128.43) (  -0.71,-126.97)  166.77                80
 02/22/2020   22:17:09   (   0.36,-128.46) (  -0.48,-132.20)  426.49                80
 02/23/2020   22:00:53   (   0.36,-128.47) (   0.56,-127.62)   96.29                80
 02/25/2020   10:22:24   (  -0.36,-128.46) (   0.61,-132.82)  496.53                80
 02/26/2020   10:00:48   (  -0.36,-128.47) (  -0.43,-128.25)   25.92                80
 02/28/2020   22:03:32   (   0.36,-128.50) (   0.28,-128.90)   45.74                80
 02/29/2020   21:47:17   (   0.35,-128.50) (   1.32,-124.33)  476.38                80