Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 11 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/26/2015   10:33:18   (   0.00,-135.47) (   0.29,-136.76)  146.33                80
 11/27/2015   10:17:12   (   0.02,-135.47) (  -0.70,-132.22)  369.86                80
 11/28/2015   22:36:28   (   0.01,-135.44) (  -0.46,-137.53)  238.10                80
 11/29/2015   22:20:23   (  -0.01,-135.44) (   0.53,-133.00)  278.19                80
 12/01/2015   10:39:31   (  -0.02,-135.45) (   0.59,-138.28)  321.84                80
 12/02/2015   10:23:26   (  -0.01,-135.45) (  -0.40,-133.75)  193.95                80
 12/03/2015   22:42:41   (   0.03,-135.41) (  -0.80,-139.05)  415.17                80
 12/04/2015   22:26:36   (   0.02,-135.41) (   0.19,-134.52)  100.74                80
 12/06/2015   10:45:44   (  -0.04,-135.42) (   0.93,-139.80)  499.36                80
 12/07/2015   10:29:38   (  -0.03,-135.40) (  -0.06,-135.27)   15.85                80