Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/25/2019   06:33:13   (   0.02, -75.19) (   0.11, -75.68)   56.04                80
 12/26/2019   06:11:38   (   0.01, -75.19) (  -0.92, -71.11)  465.62                80
 12/27/2019   18:35:57   (  -0.01, -75.20) (  -0.25, -76.34)  129.49                80
 12/28/2019   18:14:21   (  -0.01, -75.21) (   0.78, -71.77)  392.57                80
 12/30/2019   06:38:33   (   0.01, -75.22) (   0.39, -76.97)  199.52                80
 12/31/2019   06:16:57   (   0.00, -75.23) (  -0.64, -72.40)  322.96                80
 01/01/2020   18:41:17   (  -0.01, -75.25) (  -0.53, -77.63)  270.70                80
 01/02/2020   18:19:41   (  -0.00, -75.27) (   0.50, -73.05)  252.27                80
 01/04/2020   06:43:52   (   0.01, -75.29) (   0.66, -78.26)  338.31                80
 01/05/2020   06:22:17   (   0.00, -75.30) (  -0.36, -73.68)  184.93                80
 01/06/2020   18:46:36   (  -0.01, -75.34) (  -0.81, -78.92)  407.85                80
 01/07/2020   18:25:01   (  -0.01, -75.35) (   0.22, -74.34)  115.57                80