Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 5 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/24/2015   10:25:39   (   0.03,-135.29) (  -0.36,-133.66)  185.49                80
 05/25/2015   22:44:55   (  -0.02,-135.23) (  -0.88,-138.96)  425.58                80
 05/26/2015   22:28:50   (  -0.03,-135.21) (   0.15,-134.44)   88.38                80
 05/29/2015   10:29:12   (   0.02,-135.17) (   0.05,-135.17)    2.83                80
 05/31/2015   22:32:24   (  -0.01,-135.08) (  -0.19,-135.96)   99.99                80
 06/01/2015   22:16:18   (  -0.02,-135.05) (   0.79,-131.42)  412.93                80
 06/03/2015   10:35:26   (   0.00,-135.02) (   0.38,-136.70)  191.71                80
 06/04/2015   10:19:20   (   0.01,-134.98) (  -0.60,-132.16)  320.77                80
 06/05/2015   22:38:36   (   0.01,-134.90) (  -0.58,-137.47)  293.18                80
 06/06/2015   22:22:31   (  -0.00,-134.86) (   0.41,-132.94)  218.93                80