Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 11 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/22/2012   10:34:58   (  -0.02,-134.92) (   0.72,-138.21)  375.09                80
 11/23/2012   10:18:54   (  -0.00,-134.96) (  -0.30,-133.68)  146.14                80
 11/24/2012   22:38:10   (   0.03,-135.01) (  -0.87,-138.98)  453.28                80
 11/25/2012   22:22:06   (   0.01,-135.05) (   0.16,-134.45)   67.91                80
 11/28/2012   10:22:28   (  -0.02,-135.15) (   0.02,-135.19)    5.93                80
 11/30/2012   22:25:40   (   0.03,-135.22) (  -0.13,-135.97)   85.54                80
 12/01/2012   22:09:35   (   0.01,-135.25) (   0.85,-131.43)  434.74                80
 12/03/2012   10:28:43   (  -0.04,-135.31) (   0.29,-136.71)  159.79                80
 12/04/2012   10:12:39   (  -0.03,-135.34) (  -0.76,-132.18)  359.94                80