Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 7 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/03/2012   22:38:19   (   0.25,-135.27) (  -0.57,-138.99)  423.20                80
 07/04/2012   22:22:15   (   0.24,-135.29) (   0.44,-134.46)   95.08                80
 07/07/2012   10:25:19   (  -0.25,-135.33) (  -0.26,-135.20)   14.81                80
 07/09/2012   22:25:52   (   0.26,-135.36) (   0.14,-135.99)   70.94                80
 07/10/2012   22:09:47   (   0.25,-135.38) (   1.15,-131.46)  446.92                80
 07/12/2012   10:28:55   (  -0.28,-135.40) (   0.03,-136.73)  152.24                80
 07/13/2012   10:12:51   (  -0.27,-135.41) (  -0.99,-132.20)  364.95                80
 07/14/2012   22:32:07   (   0.29,-135.41) (  -0.19,-137.51)  240.18                80
 07/15/2012   22:16:03   (   0.29,-135.41) (   0.83,-132.98)  276.79                80
 07/17/2012   10:35:11   (  -0.31,-135.43) (   0.35,-138.26)  323.23                80