Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 11 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/10/2015   10:33:20   (   0.07,-135.31) (   0.38,-136.70)  158.18                80
 11/11/2015   10:17:15   (   0.08,-135.33) (  -0.65,-132.18)  360.68                80
 11/12/2015   22:36:32   (  -0.06,-135.35) (  -0.54,-137.48)  243.66                80
 11/13/2015   22:20:27   (  -0.07,-135.37) (   0.49,-132.96)  275.03                80
 11/15/2015   10:39:35   (   0.04,-135.41) (   0.69,-138.23)  321.67                80
 11/16/2015   10:23:30   (   0.06,-135.43) (  -0.35,-133.71)  196.17                80
 11/17/2015   22:42:46   (  -0.03,-135.42) (  -0.83,-139.02)  410.21                80
 11/18/2015   22:26:41   (  -0.04,-135.43) (   0.15,-134.48)  107.57                80
 11/20/2015   10:45:49   (   0.01,-135.47) (   0.98,-139.77)  489.74                80
 11/21/2015   10:28:21   (   0.03,-135.48) (   0.00,-135.23)   27.57                 3