Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 5 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/26/2015   22:28:50   (  -0.03,-135.21) (   0.16,-134.44)   88.13                80
 05/29/2015   10:29:12   (   0.02,-135.18) (   0.03,-135.18)    1.23                80
 05/31/2015   22:32:23   (  -0.01,-135.08) (  -0.23,-135.95)   99.49                80
 06/01/2015   22:16:19   (  -0.02,-135.05) (   0.81,-131.43)  413.63                80
 06/03/2015   10:35:26   (   0.00,-135.03) (   0.36,-136.70)  189.64                80
 06/04/2015   10:19:20   (   0.01,-135.00) (  -0.62,-132.17)  322.99                80
 06/05/2015   22:38:37   (   0.01,-134.91) (  -0.55,-137.48)  291.81                80
 06/06/2015   22:22:31   (  -0.00,-134.87) (   0.44,-132.94)  220.46                80
 06/08/2015   10:41:38   (  -0.01,-134.84) (   0.72,-138.22)  384.04                80
 06/09/2015   10:25:33   (  -0.00,-134.80) (  -0.26,-133.68)  127.95                80