Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/19/2019   06:42:52   (  -0.03, -75.20) (   0.58, -77.98)  317.05                80
 07/20/2019   06:21:17   (  -0.03, -75.20) (  -0.41, -73.40)  204.31                80
 07/21/2019   18:42:57   (   0.03, -75.21) (  -0.76, -78.65)  392.38                80
 07/22/2019   18:26:43   (   0.03, -75.22) (   0.29, -74.08)  129.49                80
 07/24/2019   06:48:15   (  -0.04, -75.23) (   0.88, -79.29)  462.63                80
 07/25/2019   06:26:40   (  -0.04, -75.24) (  -0.16, -74.72)   59.38                80
 07/27/2019   18:29:25   (   0.04, -75.26) (  -0.01, -75.39)   14.65                80
 07/30/2019   06:34:43   (  -0.05, -75.29) (   0.14, -76.03)   84.14                80
 07/31/2019   06:13:09   (  -0.05, -75.31) (  -0.91, -71.46)  438.14                80
 08/01/2019   18:34:49   (   0.06, -75.32) (  -0.24, -76.71)  157.44                80