Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 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)
 06/15/2013   22:33:35   (   0.08,-134.65) (  -0.54,-137.54)  328.96                80
 06/16/2013   22:17:30   (   0.07,-134.60) (   0.44,-133.00)  183.29                80
 06/18/2013   10:36:37   (  -0.09,-134.54) (   0.74,-138.26)  424.20                80
 06/19/2013   10:20:31   (  -0.09,-134.49) (  -0.24,-133.72)   87.17                80
 06/21/2013   22:21:03   (   0.10,-134.34) (   0.09,-134.49)   15.96                80
 06/22/2013   22:04:58   (   0.09,-134.29) (   1.06,-129.94)  495.07                80
 06/24/2013   10:24:05   (  -0.11,-134.21) (   0.11,-135.21)  113.96                80
 06/25/2013   10:08:00   (  -0.11,-134.15) (  -0.86,-130.67)  396.46                80
 06/26/2013   22:27:16   (   0.13,-134.05) (  -0.31,-135.97)  219.07                80
 06/27/2013   22:11:10   (   0.12,-133.99) (   0.66,-131.42)  291.58                80