Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 10 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/27/2019   10:10:35   (   0.16,-128.38) (   0.70,-130.63)  257.46                80
 10/28/2019   09:54:21   (   0.18,-128.40) (  -0.37,-126.07)  266.17                80
 10/29/2019   22:13:21   (  -0.15,-128.38) (  -0.80,-131.31)  333.84                80
 10/30/2019   21:57:06   (  -0.17,-128.40) (   0.21,-126.74)  189.54                80
 11/01/2019   10:15:58   (   0.14,-128.47) (   0.89,-131.95)  396.42                80
 11/02/2019   09:59:43   (   0.15,-128.48) (  -0.12,-127.38)  126.55                80
 11/03/2019   22:18:43   (  -0.12,-128.45) (  -1.04,-132.62)  474.47                80
 11/04/2019   22:02:27   (  -0.13,-128.46) (  -0.02,-128.04)   48.45                80
 11/07/2019   10:02:24   (   0.12,-128.54) (   0.13,-128.68)   15.39                80