Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 6 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)
 06/03/2016   22:12:37   (  -0.01,-135.02) (   0.79,-131.44)  408.15                80
 06/05/2016   10:31:45   (  -0.01,-135.10) (   0.34,-136.72)  184.76                80
 06/06/2016   10:15:39   (   0.00,-135.13) (  -0.63,-132.18)  335.48                80
 06/07/2016   22:34:57   (   0.01,-135.16) (  -0.49,-137.50)  266.37                80
 06/08/2016   22:18:51   (   0.01,-135.19) (   0.48,-132.96)  253.75                80
 06/10/2016   10:37:59   (  -0.02,-135.26) (   0.64,-138.24)  339.67                80
 06/11/2016   10:21:54   (  -0.01,-135.29) (  -0.34,-133.70)  180.31                80
 06/12/2016   22:41:11   (   0.03,-135.32) (  -0.79,-139.02)  422.09                80
 06/13/2016   22:25:06   (   0.02,-135.34) (   0.19,-134.48)   97.63                80
 06/15/2016   10:44:14   (  -0.04,-135.41) (   0.92,-139.77)  496.63                80
 06/16/2016   10:28:09   (  -0.03,-135.43) (  -0.05,-135.23)   22.82                80