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) (  -0.93,-130.58)  466.74                80
 01/15/2012   22:29:39   (   0.04,-134.62) (  -0.23,-135.89)  143.62                80
 01/16/2012   22:08:12   (   0.03,-134.60) (   0.73,-131.34)  371.13                80
 01/18/2012   10:29:57   (  -0.03,-134.59) (   0.40,-136.61)  229.17                80
 01/19/2012   10:13:49   (  -0.02,-134.57) (  -0.56,-132.06)  285.45                80
 01/20/2012   22:35:44   (   0.02,-134.50) (  -0.60,-137.37)  325.52                80
 01/21/2012   22:14:16   (   0.01,-134.48) (   0.36,-132.82)  188.56                80
 01/23/2012   10:36:01   (  -0.01,-134.46) (   0.78,-138.09)  413.06                80
 01/24/2012   10:19:54   (  -0.01,-134.43) (  -0.18,-133.54)  101.17                80
 01/26/2012   22:23:02   (   0.01,-134.34) (   0.05,-134.31)    4.67                80