Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 1 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/07/2012   10:36:33   (  -0.04,-134.77) (   0.73,-138.18)  388.86                80
 01/08/2012   10:20:27   (  -0.03,-134.76) (  -0.29,-133.64)  127.36                80
 01/09/2012   22:42:20   (   0.03,-134.71) (  -0.92,-138.94)  481.85                80
 01/10/2012   22:20:54   (   0.03,-134.70) (   0.09,-134.40)   33.76                80
 01/13/2012   10:23:51   (  -0.03,-134.69) (   0.08,-135.12)   49.67                80
 01/14/2012   10:07:45   (  -0.03,-134.68) (  -0.94,-130.59)  465.69                80
 01/15/2012   22:29:38   (   0.03,-134.62) (  -0.27,-135.88)  144.68                80
 01/16/2012   22:08:12   (   0.03,-134.59) (   0.75,-131.35)  370.03                80
 01/18/2012   10:29:56   (  -0.03,-134.58) (   0.44,-136.60)  230.52                80
 01/19/2012   10:13:50   (  -0.02,-134.56) (  -0.58,-132.07)  283.98                80