Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 10 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/09/2016   22:12:07   (  -0.24,-135.10) (   0.57,-131.37)  424.47                80
 10/11/2016   10:31:16   (   0.22,-135.08) (   0.59,-136.65)  179.46                80
 10/12/2016   10:15:11   (   0.23,-135.05) (  -0.42,-132.12)  333.00                80
 10/13/2016   22:34:29   (  -0.20,-134.96) (  -0.75,-137.44)  282.25                80
 10/14/2016   22:18:24   (  -0.22,-134.92) (   0.26,-132.91)  230.25                80
 10/16/2016   10:37:31   (   0.19,-134.90) (   0.95,-138.17)  374.02                80
 10/17/2016   10:21:27   (   0.20,-134.86) (  -0.06,-133.64)  137.72                80
 10/18/2016   22:40:44   (  -0.18,-134.75) (  -1.11,-138.96)  479.60                80
 10/19/2016   22:24:39   (  -0.19,-134.71) (  -0.16,-134.42)   32.13                80
 10/22/2016   10:25:03   (   0.18,-134.63) (   0.29,-135.17)   61.98                80
 10/23/2016   10:08:58   (   0.19,-134.57) (  -0.72,-130.64)  448.90                80