Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2020 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/19/2020   18:26:52   (   0.03, -75.21) (  -0.05, -75.72)   56.62                80
 09/20/2020   18:10:47   (   0.03, -75.22) (   0.96, -71.18)  460.98                80
 09/22/2020   06:32:35   (  -0.04, -75.23) (   0.22, -76.45)  139.05                80
 09/23/2020   06:11:11   (  -0.04, -75.24) (  -0.79, -71.92)  378.49                80
 09/24/2020   18:33:07   (   0.04, -75.27) (  -0.42, -77.22)  222.85                80
 09/25/2020   18:17:04   (   0.05, -75.29) (   0.65, -72.70)  295.14                80
 09/27/2020   06:38:52   (  -0.05, -75.30) (   0.52, -77.97)  303.71                80
 09/28/2020   06:17:28   (  -0.05, -75.32) (  -0.49, -73.44)  214.72                80
 09/29/2020   18:39:24   (   0.06, -75.36) (  -0.71, -78.74)  385.08                80
 09/30/2020   18:23:19   (   0.06, -75.39) (   0.30, -74.21)  134.05                80
 10/02/2020   06:45:08   (  -0.06, -75.42) (   0.88, -79.48)  463.02                80