Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 10 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2013   22:28:45   (  -0.20,-134.78) (  -0.49,-135.96)  134.86                80
 10/17/2013   22:12:41   (  -0.21,-134.75) (   0.51,-131.42)  377.89                80
 10/19/2013   10:31:50   (   0.18,-134.75) (   0.61,-136.70)  222.62                80
 10/20/2013   10:15:46   (   0.20,-134.70) (  -0.38,-132.17)  289.51                80
 10/21/2013   22:35:03   (  -0.16,-134.57) (  -0.80,-137.47)  330.50                80
 10/22/2013   22:18:59   (  -0.18,-134.52) (   0.20,-132.93)  181.52                80
 10/24/2013   10:38:07   (   0.14,-134.52) (   0.97,-138.20)  419.56                80
 10/25/2013   10:22:02   (   0.16,-134.47) (  -0.03,-133.66)   91.90                80
 10/27/2013   22:22:34   (  -0.14,-134.27) (  -0.20,-134.42)   18.20                80
 10/28/2013   22:06:30   (  -0.15,-134.21) (   0.81,-129.88)  493.38                80
 10/30/2013   10:25:39   (   0.12,-134.20) (   0.30,-135.16)  108.57                80