Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2011 11 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/19/2011   09:18:05   (   0.02,-115.54) (   0.51,-117.78)  255.05                80
 11/20/2011   08:56:53   (   0.04,-116.32) (  -0.64,-113.32)  341.90                80
 11/21/2011   21:22:05   (  -0.01,-117.77) (  -0.23,-118.83)  120.67                80
 11/22/2011   21:01:11   (  -0.03,-118.56) (   0.89,-114.45)  468.61                80
 11/24/2011   09:26:38   (   0.01,-119.54) (   0.10,-120.00)   52.15                80
 11/26/2011   21:29:26   (  -0.01,-121.75) (   0.08,-121.41)   39.92                80
 11/28/2011   09:55:35   (  -0.01,-122.74) (   0.97,-127.13)  499.56                80
 11/29/2011   09:35:26   (   0.00,-123.52) (  -0.12,-122.93)   67.76                80
 11/30/2011   22:02:13   (   0.02,-124.94) (  -0.83,-128.82)  441.29                80
 12/01/2011   21:42:21   (   0.00,-125.73) (   0.25,-124.69)  119.17                80