Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/20/2019   06:32:45   (  -0.00, -75.20) (   0.30, -76.46)  143.86                80
 09/21/2019   06:11:20   (  -0.00, -75.20) (  -0.72, -71.93)  373.00                80
 09/22/2019   18:33:16   (   0.01, -75.22) (  -0.45, -77.23)  229.48                80
 09/23/2019   18:17:12   (   0.01, -75.22) (   0.57, -72.70)  287.57                80
 09/25/2019   06:38:59   (  -0.01, -75.22) (   0.63, -77.96)  312.86                80
 09/26/2019   06:17:35   (  -0.01, -75.23) (  -0.40, -73.43)  204.47                80
 09/27/2019   18:39:31   (   0.01, -75.25) (  -0.77, -78.74)  397.09                80
 09/28/2019   18:23:27   (   0.01, -75.27) (   0.26, -74.21)  120.85                80
 09/30/2019   06:45:14   (  -0.01, -75.28) (   0.95, -79.47)  478.02                80
 10/01/2019   06:23:49   (  -0.01, -75.29) (  -0.08, -74.94)   40.10                80
 10/03/2019   18:27:01   (   0.02, -75.34) (  -0.05, -75.72)   42.22                80