Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 8 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/11/2012   22:09:35   (  -0.43,-134.93) (   0.39,-131.33)  411.35                80
 08/13/2012   10:31:23   (   0.44,-134.87) (   0.81,-136.59)  196.04                80
 08/14/2012   10:09:58   (   0.43,-134.83) (  -0.22,-132.07)  316.00                80
 08/15/2012   22:31:54   (  -0.43,-134.78) (  -1.00,-137.36)  293.90                80
 08/16/2012   22:15:48   (  -0.43,-134.75) (  -0.02,-132.82)  218.57                80
 08/18/2012   10:37:35   (   0.43,-134.69) (   1.21,-138.09)  388.65                80
 08/19/2012   10:16:11   (   0.43,-134.64) (   0.16,-133.57)  122.95                80
 08/20/2012   22:38:06   (  -0.42,-134.57) (  -1.37,-138.87)  489.18                80
 08/21/2012   22:22:01   (  -0.42,-134.53) (  -0.39,-134.33)   22.58                80
 08/24/2012   10:25:03   (   0.42,-134.41) (   0.57,-135.06)   74.38                80
 08/25/2012   10:03:37   (   0.42,-134.36) (  -0.42,-130.53)  436.06                80