Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2019   06:23:14   (  -0.00, -75.19) (  -0.08, -74.94)   28.82                80
 12/22/2019   18:29:04   (  -0.01, -75.20) (  -0.11, -75.71)   56.90                80
 12/23/2019   18:07:38   (  -0.01, -75.21) (   0.89, -71.17)  460.42                80
 12/25/2019   06:32:05   (   0.01, -75.21) (   0.30, -76.43)  139.23                80
 12/26/2019   06:10:39   (   0.01, -75.22) (  -0.70, -71.90)  378.15                80
 12/27/2019   18:35:15   (  -0.01, -75.24) (  -0.42, -77.21)  223.82                80
 12/28/2019   18:13:50   (  -0.00, -75.26) (   0.58, -72.68)  294.05                80
 12/30/2019   06:38:16   (   0.00, -75.27) (   0.61, -77.94)  304.32                80
 12/31/2019   06:16:52   (  -0.00, -75.29) (  -0.45, -73.42)  213.92                80
 01/01/2020   18:41:27   (   0.00, -75.32) (  -0.73, -78.72)  386.64                80
 01/02/2020   18:20:02   (   0.01, -75.34) (   0.28, -74.19)  132.17                80