Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2011 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)
 11/10/2011   08:51:12   (   0.05,-108.28) (   0.66,-111.00)  310.25                80
 11/11/2011   08:28:46   (   0.07,-109.07) (  -0.55,-106.25)  321.61                80
 11/12/2011   20:51:52   (  -0.05,-110.53) (  -0.21,-111.24)   80.81                80
 11/15/2011   08:49:41   (   0.05,-112.30) (  -0.14,-111.41)  101.25                80
 11/16/2011   21:12:46   (  -0.02,-113.75) (  -0.60,-116.40)  301.89                80
 11/17/2011   20:50:20   (  -0.04,-114.55) (   0.61,-111.65)  329.94                80
 11/19/2011   09:13:15   (   0.02,-115.53) (   0.24,-116.58)  119.51                80
 11/21/2011   21:11:13   (  -0.02,-117.76) (   0.18,-116.81)  108.18                80