Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 3 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/09/2014   22:31:18   (   0.04,-134.76) (  -0.25,-135.94)  135.03                80
 03/10/2014   22:15:14   (   0.04,-134.72) (   0.81,-131.41)  377.67                80
 03/12/2014   10:37:02   (  -0.03,-134.65) (   0.43,-136.66)  229.43                80
 03/13/2014   10:15:37   (  -0.03,-134.61) (  -0.58,-132.12)  282.62                80
 03/14/2014   22:37:33   (   0.03,-134.55) (  -0.64,-137.41)  327.27                80
 03/15/2014   22:21:29   (   0.03,-134.50) (   0.37,-132.88)  184.85                80
 03/17/2014   10:43:17   (  -0.03,-134.43) (   0.80,-138.14)  422.64                80
 03/18/2014   10:21:53   (  -0.03,-134.38) (  -0.20,-133.60)   88.68                80
 03/20/2014   22:25:05   (   0.03,-134.25) (   0.02,-134.36)   11.92                80
 03/21/2014   22:09:00   (   0.03,-134.20) (   1.03,-129.82)  499.19                80