Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 10 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2013   10:15:46   (   0.20,-134.69) (  -0.39,-132.17)  287.88                80
 10/21/2013   22:35:03   (  -0.16,-134.55) (  -0.79,-137.47)  331.82                80
 10/22/2013   22:18:59   (  -0.18,-134.51) (   0.20,-132.93)  179.96                80
 10/24/2013   10:38:07   (   0.14,-134.49) (   0.97,-138.20)  422.29                80
 10/25/2013   10:22:03   (   0.16,-134.44) (  -0.02,-133.66)   88.87                80
 10/27/2013   22:22:36   (  -0.14,-134.24) (  -0.15,-134.43)   21.29                80
 10/28/2013   22:06:30   (  -0.15,-134.19) (   0.79,-129.88)  490.02                80
 10/30/2013   10:25:39   (   0.12,-134.17) (   0.32,-135.16)  113.00                80
 10/31/2013   10:09:34   (   0.13,-134.11) (  -0.62,-130.61)  397.54                80
 11/01/2013   22:28:51   (  -0.10,-133.94) (  -0.54,-135.92)  224.98                80