Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 10 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/24/2019   22:07:59   (  -0.18,-128.28) (  -0.56,-130.01)  196.33                80
 10/25/2019   21:51:44   (  -0.19,-128.30) (   0.45,-125.43)  327.60                80
 10/27/2019   10:10:36   (   0.16,-128.38) (   0.65,-130.65)  257.67                80
 10/28/2019   09:54:21   (   0.18,-128.40) (  -0.36,-126.07)  265.92                80
 10/29/2019   22:13:21   (  -0.15,-128.38) (  -0.80,-131.31)  333.99                80
 10/30/2019   21:57:06   (  -0.17,-128.40) (   0.21,-126.74)  189.39                80
 11/01/2019   10:15:57   (   0.14,-128.47) (   0.95,-131.94)  396.68                80
 11/02/2019   09:59:42   (   0.15,-128.48) (  -0.12,-127.38)  126.29                80
 11/03/2019   22:18:42   (  -0.12,-128.45) (  -1.08,-132.61)  474.68                80
 11/04/2019   22:02:26   (  -0.13,-128.46) (  -0.07,-128.03)   48.34                80