Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 10 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/17/2016   10:21:27   (   0.20,-134.86) (  -0.09,-133.65)  138.72                80
 10/18/2016   22:40:44   (  -0.18,-134.78) (  -1.14,-138.95)  476.60                80
 10/19/2016   22:24:39   (  -0.19,-134.73) (  -0.13,-134.42)   35.40                80
 10/22/2016   10:25:03   (   0.17,-134.65) (   0.27,-135.17)   59.12                80
 10/23/2016   10:08:58   (   0.18,-134.60) (  -0.68,-130.63)  452.12                80
 10/24/2016   22:28:15   (  -0.15,-134.50) (  -0.48,-135.95)  164.59                80
 10/25/2016   22:12:10   (  -0.17,-134.46) (   0.53,-131.42)  346.94                80
 10/27/2016   10:31:18   (   0.14,-134.42) (   0.67,-136.68)  259.00                80
 10/28/2016   10:15:13   (   0.15,-134.37) (  -0.34,-132.16)  251.97                80
 10/29/2016   22:34:31   (  -0.13,-134.25) (  -0.82,-137.47)  366.18                80
 10/30/2016   22:18:25   (  -0.14,-134.20) (   0.14,-132.93)  144.86                80