Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 8 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/05/2016   22:28:24   (   0.26,-134.71) (  -0.02,-135.98)  144.55                80
 08/06/2016   22:12:18   (   0.25,-134.66) (   0.97,-131.44)  367.31                80
 08/08/2016   10:31:26   (  -0.27,-134.58) (   0.19,-136.71)  242.57                80
 08/09/2016   10:15:20   (  -0.26,-134.53) (  -0.80,-132.17)  268.91                80
 08/10/2016   22:34:35   (   0.28,-134.46) (  -0.39,-137.47)  342.70                80
 08/11/2016   22:18:30   (   0.27,-134.41) (   0.60,-132.94)  168.37                80
 08/13/2016   10:37:37   (  -0.29,-134.32) (   0.56,-138.21)  442.71                80
 08/14/2016   10:21:32   (  -0.29,-134.26) (  -0.43,-133.67)   67.86                80
 08/16/2016   22:22:02   (   0.30,-134.12) (   0.24,-134.43)   34.85                80
 08/17/2016   22:05:56   (   0.29,-134.06) (   1.24,-129.90)  475.26                80