Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/23/2018   18:16:48   (  -0.03, -75.22) (   0.54, -72.72)  285.10                80
 01/25/2018   06:38:35   (   0.03, -75.22) (   0.67, -77.98)  314.65                80
 01/26/2018   06:17:10   (   0.03, -75.24) (  -0.39, -73.46)  203.69                80
 01/27/2018   18:39:05   (  -0.04, -75.28) (  -0.79, -78.76)  395.49                80
 01/28/2018   18:20:20   (  -0.04, -75.30) (   0.22, -74.22)  123.10                80
 01/30/2018   06:44:46   (   0.05, -75.31) (   0.99, -79.48)  475.90                80
 01/31/2018   06:23:21   (   0.05, -75.33) (  -0.01, -74.95)   42.92                80
 02/02/2018   18:26:32   (  -0.05, -75.40) (  -0.10, -75.73)   36.24                80
 02/03/2018   18:07:46   (  -0.05, -75.43) (   0.91, -71.19)  483.44                80
 02/05/2018   06:32:12   (   0.06, -75.46) (   0.30, -76.45)  113.72                80