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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/17/2019   18:22:52   (  -0.00, -75.19) (   0.19, -74.20)  112.93                80
 12/19/2019   06:44:39   (  -0.00, -75.19) (   0.94, -79.47)  488.09                80
 12/20/2019   06:23:14   (  -0.01, -75.19) (  -0.06, -74.94)   28.43                80
 12/22/2019   18:29:03   (  -0.00, -75.20) (  -0.13, -75.70)   57.82                80
 12/23/2019   18:10:18   (  -0.00, -75.20) (   0.87, -71.17)  459.48                80
 12/25/2019   06:32:05   (   0.01, -75.21) (   0.27, -76.44)  140.03                80
 12/26/2019   06:10:40   (   0.01, -75.22) (  -0.74, -71.91)  377.23                80
 12/27/2019   18:35:15   (  -0.01, -75.23) (  -0.45, -77.21)  225.17                80
 12/28/2019   18:13:50   (  -0.00, -75.24) (   0.56, -72.67)  292.58                80
 12/30/2019   06:38:17   (   0.00, -75.26) (   0.58, -77.95)  305.64                80