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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/02/2012   10:30:28   (  -0.04,-134.80) (   0.38,-136.70)  215.78                80
 01/03/2012   10:14:22   (  -0.04,-134.81) (  -0.63,-132.16)  301.70                80
 01/04/2012   22:36:15   (   0.04,-134.77) (  -0.58,-137.45)  306.06                80
 01/05/2012   22:14:48   (   0.03,-134.77) (   0.43,-132.92)  210.77                80
 01/07/2012   10:36:34   (  -0.03,-134.79) (   0.70,-138.19)  386.14                80
 01/08/2012   10:20:26   (  -0.03,-134.79) (  -0.26,-133.64)  130.52                80
 01/09/2012   22:42:20   (   0.03,-134.75) (  -0.89,-138.94)  477.99                80
 01/10/2012   22:20:54   (   0.03,-134.74) (   0.13,-134.41)   38.09                80
 01/13/2012   10:23:52   (  -0.03,-134.74) (   0.04,-135.13)   44.61                80
 01/14/2012   10:07:44   (  -0.03,-134.72) (  -0.93,-130.58)  471.18                80