Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 8 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/01/2014   22:35:47   (  -0.38,-134.74) (  -0.63,-135.90)  132.27                80
 09/02/2014   22:19:44   (  -0.39,-134.67) (   0.34,-131.36)  377.17                80
 09/04/2014   10:38:54   (   0.37,-134.54) (   0.85,-136.63)  238.51                80
 09/05/2014   10:20:10   (   0.37,-134.47) (  -0.13,-132.10)  270.18                80
 09/06/2014   22:42:10   (  -0.36,-134.40) (  -1.04,-137.41)  343.05                80
 09/07/2014   22:26:06   (  -0.36,-134.33) (  -0.06,-132.87)  165.81                80
 09/09/2014   10:45:17   (   0.35,-134.20) (   1.24,-138.14)  449.88                80
 09/10/2014   10:29:13   (   0.35,-134.12) (   0.26,-133.60)   58.49                80
 09/12/2014   22:29:49   (  -0.35,-133.96) (  -0.46,-134.38)   47.90                80
 09/13/2014   22:13:46   (  -0.35,-133.89) (   0.58,-129.86)  460.41                80