Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 8 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)
 08/25/2019   10:05:39   (   0.38,-128.42) (   0.45,-128.74)   35.77                80
 08/26/2019   09:44:05   (   0.37,-128.41) (  -0.60,-124.17)  483.95                80
 08/27/2019   22:05:44   (  -0.38,-128.39) (  -0.62,-129.40)  115.78                80
 08/28/2019   21:49:30   (  -0.37,-128.38) (   0.43,-124.84)  404.16                80
 08/30/2019   10:11:01   (   0.38,-128.37) (   0.78,-130.03)  189.90                80
 08/31/2019   09:49:27   (   0.37,-128.36) (  -0.28,-125.47)  329.51                80
 09/01/2019   22:11:07   (  -0.37,-128.32) (  -0.89,-130.71)  271.59                80
 09/02/2019   21:54:51   (  -0.37,-128.31) (   0.11,-126.13)  248.15                80
 09/04/2019   10:16:24   (   0.37,-128.31) (   1.03,-131.34)  345.72                80
 09/05/2019   09:54:48   (   0.37,-128.29) (   0.04,-126.77)  173.27                80
 09/06/2019   22:16:28   (  -0.37,-128.24) (  -1.21,-132.01)  429.62                80