Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 11 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/10/2014   22:26:18   (  -0.06,-134.65) (   0.30,-132.93)  195.75                80
 11/12/2014   10:45:27   (   0.03,-134.60) (   0.83,-138.21)  411.59                80
 11/13/2014   10:29:21   (   0.04,-134.55) (  -0.15,-133.67)  100.11                80
 11/15/2014   22:29:52   (  -0.03,-134.42) (  -0.02,-134.45)    2.60                80
 11/18/2014   10:32:54   (   0.01,-134.32) (   0.21,-135.18)   98.34                80
 11/19/2014   10:16:48   (   0.03,-134.27) (  -0.78,-130.64)  412.71                80
 11/20/2014   22:36:04   (   0.00,-134.17) (  -0.42,-135.95)  203.45                80
 11/21/2014   22:19:58   (  -0.02,-134.11) (   0.57,-131.41)  307.60                80
 11/23/2014   10:39:06   (  -0.01,-134.05) (   0.59,-136.68)  300.59                80
 11/24/2014   10:23:00   (   0.00,-133.99) (  -0.40,-132.15)  209.45                80