Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 5 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2012   22:10:21   (   0.03,-135.45) (   0.88,-131.50)  450.31                80
 05/25/2012   10:29:27   (  -0.05,-135.43) (   0.27,-136.77)  152.19                80
 05/26/2012   10:13:22   (  -0.04,-135.43) (  -0.76,-132.23)  364.25                80
 05/27/2012   22:32:37   (   0.06,-135.43) (  -0.40,-137.54)  240.14                80
 05/28/2012   22:16:31   (   0.05,-135.42) (   0.58,-133.00)  276.15                80
 05/30/2012   10:35:37   (  -0.07,-135.40) (   0.56,-138.27)  327.07                80
 05/31/2012   10:19:30   (  -0.06,-135.38) (  -0.42,-133.73)  188.56                80
 06/01/2012   22:38:46   (   0.09,-135.37) (  -0.72,-139.04)  417.59                80
 06/02/2012   22:22:39   (   0.08,-135.35) (   0.26,-134.49)   97.67                80
 06/05/2012   10:25:39   (  -0.10,-135.29) (  -0.13,-135.23)    8.26                80