Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 5 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/26/2016   10:21:53   (   0.03,-134.50) (  -0.16,-133.66)   95.31                80
 05/28/2016   22:22:24   (  -0.02,-134.36) (  -0.06,-134.42)    8.11                80
 05/31/2016   10:25:27   (   0.02,-134.23) (   0.23,-135.16)  106.25                80
 06/01/2016   10:09:21   (   0.02,-134.17) (  -0.74,-130.62)  403.92                80
 06/02/2016   22:28:38   (  -0.01,-134.07) (  -0.44,-135.93)  212.11                80
 06/03/2016   22:12:33   (  -0.01,-134.01) (   0.58,-131.40)  297.90                80
 06/05/2016   10:31:41   (  -0.01,-133.93) (   0.61,-136.67)  312.15                80
 06/06/2016   10:15:35   (   0.00,-133.86) (  -0.36,-132.13)  197.28                80
 06/07/2016   22:34:51   (   0.02,-133.75) (  -0.82,-137.43)  420.31                80