Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 10 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/09/2018   06:17:40   (   0.02, -75.00) (  -0.36, -73.42)  180.53                80
 10/10/2018   18:39:35   (  -0.03, -75.00) (  -0.87, -78.72)  424.69                80
 10/11/2018   18:23:31   (  -0.03, -75.00) (   0.16, -74.20)   91.72                80
 10/14/2018   06:23:54   (   0.03, -75.01) (   0.01, -74.94)    8.42                80
 10/16/2018   18:29:45   (  -0.03, -75.02) (  -0.21, -75.71)   79.20                80
 10/17/2018   18:08:20   (  -0.03, -75.03) (   0.83, -71.18)  437.95                80
 10/19/2018   06:32:47   (   0.03, -75.05) (   0.37, -76.45)  160.58                80
 10/20/2018   06:11:23   (   0.03, -75.06) (  -0.66, -71.93)  356.86                80
 10/21/2018   18:33:19   (  -0.04, -75.07) (  -0.50, -77.24)  246.35                80
 10/22/2018   18:17:14   (  -0.04, -75.09) (   0.47, -72.70)  271.60                80