Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 1 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/16/2012   22:08:11   (   0.03,-134.61) (   0.75,-131.34)  371.90                80
 01/18/2012   10:29:56   (  -0.03,-134.60) (   0.43,-136.60)  228.25                80
 01/19/2012   10:13:49   (  -0.02,-134.58) (  -0.60,-132.07)  286.48                80
 01/20/2012   22:35:42   (   0.02,-134.51) (  -0.65,-137.35)  324.26                80
 01/21/2012   22:14:15   (   0.01,-134.48) (   0.39,-132.82)  189.99                80
 01/23/2012   10:35:59   (  -0.01,-134.46) (   0.77,-138.08)  411.34                80
 01/24/2012   10:19:52   (  -0.01,-134.44) (  -0.20,-133.53)  103.05                80
 01/26/2012   22:20:18   (   0.01,-134.34) (   0.02,-134.29)    6.43                80
 01/29/2012   10:23:15   (  -0.02,-134.28) (   0.15,-135.00)   82.10                80
 01/30/2012   10:07:07   (  -0.01,-134.25) (  -0.84,-130.46)  431.82                80