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) (   0.53,-136.61)  137.47                80
 10/01/2012   10:12:22   (   0.28,-135.41) (  -0.48,-132.07)  380.95                80
 10/02/2012   22:31:38   (  -0.26,-135.39) (  -0.70,-137.38)  226.20                80
 10/03/2012   22:15:32   (  -0.27,-135.40) (   0.31,-132.84)  292.06                80
 10/05/2012   10:34:39   (   0.24,-135.46) (   0.81,-138.12)  302.71                80
 10/06/2012   10:18:33   (   0.25,-135.46) (  -0.15,-133.57)  214.92                80
 10/07/2012   22:37:48   (  -0.22,-135.43) (  -1.02,-138.88)  393.93                80
 10/08/2012   22:21:43   (  -0.23,-135.43) (   0.00,-134.34)  123.58                80
 10/10/2012   10:40:50   (   0.20,-135.48) (   1.11,-139.62)  471.82                80
 10/11/2012   10:24:44   (   0.21,-135.48) (   0.14,-135.08)   45.25                80