Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 8 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)
 08/19/2016   10:27:35   (   0.37,-134.93) (   0.40,-135.06)   14.35                80
 08/21/2016   22:28:05   (  -0.38,-135.00) (  -0.59,-135.82)   93.80                80
 08/22/2016   22:12:01   (  -0.37,-135.04) (   0.47,-131.30)  426.67                80
 08/24/2016   10:33:48   (   0.38,-135.11) (   0.70,-136.57)  166.11                80
 08/25/2016   10:12:22   (   0.37,-135.13) (  -0.30,-132.03)  353.31                80
 08/26/2016   22:34:18   (  -0.37,-135.15) (  -0.88,-137.33)  248.66                80
 08/27/2016   22:18:13   (  -0.37,-135.18) (   0.18,-132.81)  270.97                80
 08/29/2016   10:40:01   (   0.36,-135.25) (   0.99,-138.08)  322.20                80
 08/30/2016   10:18:35   (   0.36,-135.27) (  -0.01,-133.54)  196.81                80
 08/31/2016   22:40:30   (  -0.36,-135.28) (  -1.16,-138.84)  406.53                80
 09/01/2016   22:24:25   (  -0.36,-135.30) (  -0.16,-134.31)  112.90                80