Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 9 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/30/2012   10:28:28   (   0.27,-135.40) (   0.51,-136.61)  137.45                80
 10/01/2012   10:12:22   (   0.28,-135.41) (  -0.44,-132.07)  381.01                80
 10/02/2012   22:31:38   (  -0.26,-135.39) (  -0.69,-137.38)  226.15                80
 10/03/2012   22:15:32   (  -0.27,-135.40) (   0.32,-132.85)  292.12                80
 10/05/2012   10:34:39   (   0.24,-135.46) (   0.85,-138.11)  302.63                80
 10/06/2012   10:18:33   (   0.25,-135.46) (  -0.17,-133.58)  214.99                80
 10/07/2012   22:37:48   (  -0.22,-135.43) (  -1.00,-138.88)  393.86                80
 10/08/2012   22:21:43   (  -0.23,-135.43) (   0.02,-134.35)  123.65                80
 10/10/2012   10:40:49   (   0.20,-135.48) (   1.15,-139.61)  471.74                80
 10/11/2012   10:24:44   (   0.21,-135.48) (   0.13,-135.08)   45.30                80