Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/31/2018   06:23:21   (   0.03, -75.18) (  -0.03, -74.95)   26.15                80
 02/02/2018   18:26:31   (  -0.04, -75.22) (  -0.14, -75.71)   56.20                80
 02/03/2018   18:10:25   (  -0.03, -75.24) (   0.86, -71.18)  462.25                80
 02/05/2018   06:32:13   (   0.04, -75.25) (   0.28, -76.45)  136.30                80
 02/06/2018   06:10:47   (   0.04, -75.27) (  -0.72, -71.92)  382.43                80
 02/07/2018   18:32:42   (  -0.04, -75.31) (  -0.46, -77.22)  216.61                80
 02/08/2018   18:16:37   (  -0.04, -75.34) (   0.55, -72.68)  302.65                80
 02/10/2018   06:38:23   (   0.05, -75.36) (   0.65, -77.94)  294.48                80
 02/11/2018   06:16:59   (   0.05, -75.39) (  -0.42, -73.42)  224.87                80
 02/12/2018   18:38:53   (  -0.06, -75.44) (  -0.82, -78.71)  373.61                80
 02/13/2018   18:22:49   (  -0.06, -75.47) (   0.25, -74.19)  146.28                80