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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/12/2011   20:51:49   (  -0.05,-110.53) (  -0.22,-111.23)   79.94                80
 11/15/2011   08:49:35   (   0.05,-112.30) (  -0.15,-111.39)  103.45                80
 11/16/2011   21:12:38   (  -0.03,-113.75) (  -0.61,-116.37)  298.31                80
 11/17/2011   20:50:10   (  -0.04,-114.55) (   0.61,-111.61)  334.46                80
 11/19/2011   09:13:00   (   0.02,-115.53) (   0.25,-116.52)  113.45                80
 11/21/2011   21:10:52   (  -0.02,-117.76) (   0.20,-116.73)  117.69                80
 11/23/2011   09:33:42   (   0.00,-118.74) (   0.63,-121.64)  329.30                80
 11/24/2011   09:11:12   (   0.02,-119.52) (  -0.58,-116.87)  303.07                80