Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/14/2012   10:07:45   (  -0.03,-134.68) (  -0.94,-130.59)  466.88                80
 01/15/2012   22:29:38   (   0.04,-134.62) (  -0.27,-135.88)  143.49                80
 01/16/2012   22:08:12   (   0.03,-134.60) (   0.75,-131.34)  371.28                80
 01/18/2012   10:29:56   (  -0.03,-134.60) (   0.45,-136.60)  229.01                80
 01/19/2012   10:13:50   (  -0.02,-134.57) (  -0.57,-132.06)  285.59                80
 01/20/2012   22:35:43   (   0.02,-134.51) (  -0.64,-137.36)  325.38                80
 01/21/2012   22:14:16   (   0.01,-134.48) (   0.38,-132.82)  188.69                80
 01/23/2012   10:36:01   (  -0.01,-134.46) (   0.82,-138.08)  412.88                80
 01/24/2012   10:19:54   (  -0.01,-134.43) (  -0.20,-133.54)  101.31                80
 01/26/2012   22:20:21   (   0.01,-134.34) (   0.00,-134.30)    4.60                80