Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2011 11 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/24/2011   09:21:47   (   0.02,-119.60) (  -0.04,-119.46)   15.84                80
 11/25/2011   21:46:26   (   0.00,-121.04) (  -0.86,-124.83)  432.09                80
 11/26/2011   21:25:04   (  -0.02,-121.84) (   0.33,-120.34)  170.90                80
 11/28/2011   09:49:34   (  -0.00,-122.82) (   0.62,-125.66)  322.97                80
 11/29/2011   09:28:11   (   0.01,-123.61) (  -0.51,-121.15)  278.91                80
 11/30/2011   21:52:51   (   0.01,-125.05) (  -0.32,-126.53)  169.42                80
 12/01/2011   21:31:28   (  -0.01,-125.84) (   0.87,-122.04)  433.59                80
 12/03/2011   09:55:58   (  -0.01,-126.83) (   0.13,-127.35)   59.83                80
 12/05/2011   21:56:35   (   0.01,-129.04) (   0.18,-128.23)   92.71                80