Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 9 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/26/2016   10:12:24   (   0.30,-135.41) (  -0.44,-132.06)  381.44                80
 09/27/2016   22:34:23   (  -0.28,-135.38) (  -0.72,-137.38)  227.85                80
 09/28/2016   22:18:19   (  -0.28,-135.37) (   0.30,-132.86)  287.06                80
 09/30/2016   10:37:28   (   0.26,-135.37) (   0.87,-138.13)  315.05                80
 10/01/2016   10:21:24   (   0.27,-135.35) (  -0.09,-133.60)  199.31                80
 10/02/2016   22:40:42   (  -0.25,-135.30) (  -1.07,-138.91)  411.50                80
 10/03/2016   22:24:39   (  -0.26,-135.29) (  -0.04,-134.39)  102.87                80
 10/05/2016   10:43:48   (   0.24,-135.28) (   1.21,-139.67)  499.60                80
 10/06/2016   10:25:04   (   0.25,-135.25) (   0.24,-135.13)   14.02                80
 10/08/2016   22:28:17   (  -0.24,-135.16) (  -0.43,-135.91)   85.56                80
 10/09/2016   22:12:14   (  -0.25,-135.14) (   0.60,-131.38)  427.75                80