Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 12 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2019   06:44:39   (  -0.00, -75.19) (   0.96, -79.47)  487.88                80
 12/20/2019   06:23:13   (  -0.01, -75.19) (  -0.04, -74.93)   28.79                80
 12/22/2019   18:26:24   (  -0.00, -75.20) (  -0.09, -75.71)   57.28                80
 12/23/2019   18:07:39   (  -0.01, -75.21) (   0.92, -71.18)  460.12                80
 12/25/2019   06:32:05   (   0.01, -75.21) (   0.28, -76.44)  139.33                80
 12/26/2019   06:10:39   (   0.01, -75.22) (  -0.73, -71.90)  378.00                80
 12/27/2019   18:35:15   (  -0.01, -75.24) (  -0.46, -77.20)  224.22                80
 12/28/2019   18:13:49   (  -0.00, -75.25) (   0.55, -72.67)  293.63                80
 12/30/2019   06:38:17   (   0.00, -75.27) (   0.59, -77.95)  304.55                80
 12/31/2019   06:16:51   (  -0.01, -75.29) (  -0.42, -73.41)  213.63                80