Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 10 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/04/2015   10:30:04   (   0.26,-135.06) (   0.26,-135.10)    4.27                80
 10/06/2015   22:30:35   (  -0.24,-135.01) (  -0.42,-135.88)   98.28                80
 10/07/2015   22:14:29   (  -0.25,-134.99) (   0.57,-131.34)  415.73                80
 10/09/2015   10:33:35   (   0.23,-134.94) (   0.63,-136.61)  191.37                80
 10/10/2015   10:17:30   (   0.24,-134.91) (  -0.37,-132.08)  322.13                80
 10/11/2015   22:36:46   (  -0.21,-134.88) (  -0.78,-137.39)  287.24                80
 10/12/2015   22:20:41   (  -0.22,-134.85) (   0.22,-132.86)  226.35                80
 10/14/2015   10:39:48   (   0.20,-134.79) (   0.92,-138.14)  380.80                80
 10/15/2015   10:23:42   (   0.21,-134.76) (  -0.02,-133.60)  131.99                80