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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/16/2012   10:19:13   (  -0.14,-135.00) (  -0.45,-133.68)  151.31                80
 06/17/2012   22:38:27   (   0.17,-134.97) (  -0.75,-138.97)  456.67                80
 06/18/2012   22:22:22   (   0.16,-134.93) (   0.28,-134.44)   56.45                80
 06/21/2012   10:22:42   (  -0.17,-134.81) (  -0.10,-135.17)   40.61                80
 06/22/2012   10:06:35   (  -0.16,-134.77) (  -1.07,-130.63)  471.74                80
 06/23/2012   22:25:51   (   0.18,-134.72) (  -0.07,-135.93)  137.68                80
 06/24/2012   22:09:44   (   0.17,-134.68) (   0.91,-131.39)  374.64                80
 06/26/2012   10:28:50   (  -0.20,-134.59) (   0.26,-136.66)  235.94                80
 06/27/2012   10:12:44   (  -0.19,-134.54) (  -0.71,-132.11)  275.60                80
 06/28/2012   22:31:59   (   0.21,-134.47) (  -0.43,-137.42)  335.81                80