Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 6 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)
 06/24/2016   22:18:50   (   0.06,-135.49) (   0.62,-132.99)  285.03                80
 06/26/2016   10:37:57   (  -0.08,-135.52) (   0.55,-138.26)  313.06                80
 06/27/2016   10:21:53   (  -0.07,-135.52) (  -0.49,-133.73)  204.18                80
 06/28/2016   22:41:09   (   0.09,-135.51) (  -0.69,-139.04)  402.08                80
 06/29/2016   22:25:04   (   0.08,-135.51) (   0.30,-134.50)  114.74                80
 07/01/2016   10:44:11   (  -0.11,-135.53) (   0.86,-139.77)  484.61                80
 07/02/2016   10:28:07   (  -0.10,-135.52) (  -0.18,-135.25)   31.76                80
 07/04/2016   22:28:37   (   0.11,-135.49) (  -0.01,-136.02)   59.66                80
 07/05/2016   22:12:32   (   0.10,-135.49) (   0.98,-131.48)  456.47                80
 07/07/2016   10:31:39   (  -0.12,-135.50) (   0.18,-136.75)  143.74                80
 07/08/2016   10:15:35   (  -0.11,-135.49) (  -0.86,-132.23)  372.24                80